Study of electron pair production below the Z mass at the CERN pp collider
Identifieur interne : 00EC96 ( Main/Merge ); précédent : 00EC95; suivant : 00EC97Study of electron pair production below the Z mass at the CERN pp collider
Auteurs : J. Alitti [France] ; G. Ambrosini [Italie] ; R. Ansari [France] ; D. Autiero [Italie] ; P. Bareyre [France] ; I. A. Bertram [Australie] ; G. Blaylock [Suisse, États-Unis] ; P. Bonamy [France] ; K. Borer [Suisse] ; M. Bourliaud [France] ; D. Buskulic [France] ; G. Carboni [Italie] ; D. Cavalli [Italie] ; V. Cavasinni [Italie] ; P. Cenci [Italie] ; J. C. Chollet [France] ; C. Conta [Italie] ; G. Costa [Italie] ; F. Costantini [Italie] ; L. Cozzi [Italie] ; A. Cravero [Italie] ; M. Curatolo [Italie] ; A. Dell'Acqua [Italie] ; T. Delprete [Italie] ; R. S. Dewolf [Royaume-Uni] ; L. Dilella [Suisse] ; Y. Ducros [France] ; G. F. Egan [Australie] ; K. F. Einsweiler [Suisse, États-Unis] ; B. Esposito [Italie] ; L. Fayard [France] ; A. Federspiel [Suisse] ; R. Ferrari [Italie] ; M. Fraternali [Italie] ; D. Friodevaux [Suisse] ; G. Fumagalli [Italie] ; J. M. Gaillard [France] ; F. Gianotti [Italie] ; O. Gildemeister [Suisse] ; C. Gössling [Allemagne] ; V. G. Goggi [Italie] ; S. Grünendahl [Allemagne] ; K. Hara [Suisse, Japon] ; S. Hellman [Suisse] ; J. Hrivnac [Suisse] ; H. Hufnagel [Allemagne] ; E. Hugentobler [Suisse] ; K. Hultqvist [Suisse, Suède] ; E. Iacopini [Italie] ; J. Incandela [Italie] ; K. Jakobs [Suisse] ; P. Jenni [Suisse] ; E. E. Kluge [Allemagne] ; N. Kurz [Allemagne] ; S. Lami [Italie] ; P. Lariccia [Italie] ; M. Lefebvre [Suisse] ; L. Linssen [Suisse] ; M. Livan [Italie] ; P. Lubrano [Suisse, Italie] ; C. Magneville [France] ; L. Mandelli [Italie] ; L. Mapelli [Suisse] ; M. Mazzanti [Italie] ; K. Meier [Suisse, Allemagne] ; B. Merkel [France] ; J. P. Meyer [France] ; M. Moniez [France] ; R. Moning [Suisse] ; M. Morganti [Italie] ; L. Müller [Suisse] ; D. J. Munday [Royaume-Uni] ; M. Nessi [Suisse] ; F. Nessi-Tedaldi [Suisse] ; C. Onions [Suisse] ; T. Pal [Suisse] ; M. A. Parker [Royaume-Uni] ; G. Parrour [France] ; F. Pastore [Italie] ; E. Pennacchio [Italie] ; J. M. Pentney [Suisse] ; M. Pepe [Suisse] ; L. Perini [Italie] ; C. Petridou [Italie] ; P. Petroff [France] ; H. Plothow-Besch [Suisse] ; G. Polesello [Suisse, Italie] ; A. Poppleton [Suisse] ; K. Pretzl [Suisse] ; M. Primavera [Italie] ; M. Punturo [Italie] ; J. P. Repellin [France] ; A. Rimoldi [Italie] ; M. Sacchi [Italie] ; P. Scampoli [Italie] ; J. Schacher [Suisse] ; B. Schmidt [Allemagne] ; V. Simak [Suisse] ; S. L. Singh [Royaume-Uni] ; V. Sondermann [Allemagne] ; R. Spiwoks [Allemagne] ; S. Stapnes [Suisse] ; C. Talamonti [Italie] ; F. Tondini [Italie] ; S. N. Tovey [Australie] ; E. Tsesmelis [Allemagne] ; G. Unal [France] ; M. Valdata-Nappi [Italie] ; V. Vercesi [Italie] ; A. R. Weidberg [Suisse, Royaume-Uni] ; P. S. Wells [Royaume-Uni, Suisse] ; T. O. White [Royaume-Uni] ; D. R. Wood [France] ; S. A. Wotton [Royaume-Uni, Suisse] ; H. Zaccone [France] ; A. Zylberstejn [France]Source :
- Physics Letters B [ 0370-2693 ] ; 1992.
English descriptors
- KwdEn :
- Background events, Beam axis, Calorimeter, Central calorimeter, Central detector, Detector, Detector acceptance, Digital microelectronics, Edge cells, Electromagnetic, Electromagnetic showers, Electron candidates, Electron pair mass, Electron pair production, Electron pairs, Electron selection criteria, Electron signature, Endcap calorimeters, Event sample, Fisica, Genuine electron pairs, Hadronic jets, Lepton, Lepton pair, Lepton pair production, Lett, Luminosity, Mass interval, Monte carlo programme, Nucl, Number physics letters, Particle physics, Phys, Physics letters, Preprint phys, Present address, Present analysis, Radiation length, Silicon arrays, Solid line, Systematic uncertainties, Test beam data.
- Teeft :
- Background events, Beam axis, Calorimeter, Central calorimeter, Central detector, Detector, Detector acceptance, Digital microelectronics, Edge cells, Electromagnetic, Electromagnetic showers, Electron candidates, Electron pair mass, Electron pair production, Electron pairs, Electron selection criteria, Electron signature, Endcap calorimeters, Event sample, Fisica, Genuine electron pairs, Hadronic jets, Lepton, Lepton pair, Lepton pair production, Lett, Luminosity, Mass interval, Monte carlo programme, Nucl, Number physics letters, Particle physics, Phys, Physics letters, Preprint phys, Present address, Present analysis, Radiation length, Silicon arrays, Solid line, Systematic uncertainties, Test beam data.
Abstract
Abstract: Results on the cross section for the production of electron pairs in pp collisions at √s = 630 GeV are presented. The measured value is σ = 405 ± 51 (syst.) ± 84 (syst.) pb, in the invariant mass interval 10 < m< 70 GeV. The results are compared to recent theoretical calculations which include O(αs2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable √τ = m √s.
Url:
DOI: 10.1016/0370-2693(92)90876-6
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<author><name sortKey="Incandela, J" sort="Incandela, J" uniqKey="Incandela J" first="J." last="Incandela">J. Incandela</name>
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<author><name sortKey="Jakobs, K" sort="Jakobs, K" uniqKey="Jakobs K" first="K." last="Jakobs">K. Jakobs</name>
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<author><name sortKey="Kurz, N" sort="Kurz, N" uniqKey="Kurz N" first="N." last="Kurz">N. Kurz</name>
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<author><name sortKey="Mazzanti, M" sort="Mazzanti, M" uniqKey="Mazzanti M" first="M." last="Mazzanti">M. Mazzanti</name>
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<author><name sortKey="Meier, K" sort="Meier, K" uniqKey="Meier K" first="K." last="Meier">K. Meier</name>
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<author><name sortKey="Merkel, B" sort="Merkel, B" uniqKey="Merkel B" first="B." last="Merkel">B. Merkel</name>
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<author><name sortKey="Meyer, J P" sort="Meyer, J P" uniqKey="Meyer J" first="J. P." last="Meyer">J. P. Meyer</name>
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<author><name sortKey="Moniez, M" sort="Moniez, M" uniqKey="Moniez M" first="M." last="Moniez">M. Moniez</name>
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<author><name sortKey="Moning, R" sort="Moning, R" uniqKey="Moning R" first="R." last="Moning">R. Moning</name>
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<author><name sortKey="Muller, L" sort="Muller, L" uniqKey="Muller L" first="L." last="Müller">L. Müller</name>
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<author><name sortKey="Nessi, M" sort="Nessi, M" uniqKey="Nessi M" first="M." last="Nessi">M. Nessi</name>
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<author><name sortKey="Onions, C" sort="Onions, C" uniqKey="Onions C" first="C." last="Onions">C. Onions</name>
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<author><name sortKey="Parrour, G" sort="Parrour, G" uniqKey="Parrour G" first="G." last="Parrour">G. Parrour</name>
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<author><name sortKey="Pennacchio, E" sort="Pennacchio, E" uniqKey="Pennacchio E" first="E." last="Pennacchio">E. Pennacchio</name>
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<author><name sortKey="Pentney, J M" sort="Pentney, J M" uniqKey="Pentney J" first="J. M." last="Pentney">J. M. Pentney</name>
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<author><name sortKey="Pepe, M" sort="Pepe, M" uniqKey="Pepe M" first="M." last="Pepe">M. Pepe</name>
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<author><name sortKey="Plothow Besch, H" sort="Plothow Besch, H" uniqKey="Plothow Besch H" first="H." last="Plothow-Besch">H. Plothow-Besch</name>
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<author><name sortKey="Polesello, G" sort="Polesello, G" uniqKey="Polesello G" first="G." last="Polesello">G. Polesello</name>
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<author><name sortKey="Poppleton, A" sort="Poppleton, A" uniqKey="Poppleton A" first="A." last="Poppleton">A. Poppleton</name>
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<author><name sortKey="Pretzl, K" sort="Pretzl, K" uniqKey="Pretzl K" first="K." last="Pretzl">K. Pretzl</name>
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<author><name sortKey="Primavera, M" sort="Primavera, M" uniqKey="Primavera M" first="M." last="Primavera">M. Primavera</name>
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<author><name sortKey="Punturo, M" sort="Punturo, M" uniqKey="Punturo M" first="M." last="Punturo">M. Punturo</name>
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<author><name sortKey="Repellin, J P" sort="Repellin, J P" uniqKey="Repellin J" first="J. P." last="Repellin">J. P. Repellin</name>
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<author><name sortKey="Rimoldi, A" sort="Rimoldi, A" uniqKey="Rimoldi A" first="A." last="Rimoldi">A. Rimoldi</name>
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<author><name sortKey="Sacchi, M" sort="Sacchi, M" uniqKey="Sacchi M" first="M." last="Sacchi">M. Sacchi</name>
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<author><name sortKey="Scampoli, P" sort="Scampoli, P" uniqKey="Scampoli P" first="P." last="Scampoli">P. Scampoli</name>
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<author><name sortKey="Schacher, J" sort="Schacher, J" uniqKey="Schacher J" first="J." last="Schacher">J. Schacher</name>
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<author><name sortKey="Schmidt, B" sort="Schmidt, B" uniqKey="Schmidt B" first="B." last="Schmidt">B. Schmidt</name>
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<author><name sortKey="Simak, V" sort="Simak, V" uniqKey="Simak V" first="V." last="Simak">V. Simak</name>
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<author><name sortKey="Singh, S L" sort="Singh, S L" uniqKey="Singh S" first="S. L." last="Singh">S. L. Singh</name>
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<author><name sortKey="Sondermann, V" sort="Sondermann, V" uniqKey="Sondermann V" first="V." last="Sondermann">V. Sondermann</name>
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<author><name sortKey="Spiwoks, R" sort="Spiwoks, R" uniqKey="Spiwoks R" first="R." last="Spiwoks">R. Spiwoks</name>
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<author><name sortKey="Stapnes, S" sort="Stapnes, S" uniqKey="Stapnes S" first="S." last="Stapnes">S. Stapnes</name>
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<author><name sortKey="Talamonti, C" sort="Talamonti, C" uniqKey="Talamonti C" first="C." last="Talamonti">C. Talamonti</name>
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<author><name sortKey="Tondini, F" sort="Tondini, F" uniqKey="Tondini F" first="F." last="Tondini">F. Tondini</name>
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<author><name sortKey="Tovey, S N" sort="Tovey, S N" uniqKey="Tovey S" first="S. N." last="Tovey">S. N. Tovey</name>
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<author><name sortKey="Tsesmelis, E" sort="Tsesmelis, E" uniqKey="Tsesmelis E" first="E." last="Tsesmelis">E. Tsesmelis</name>
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<author><name sortKey="Unal, G" sort="Unal, G" uniqKey="Unal G" first="G." last="Unal">G. Unal</name>
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<author><name sortKey="Valdata Nappi, M" sort="Valdata Nappi, M" uniqKey="Valdata Nappi M" first="M." last="Valdata-Nappi">M. Valdata-Nappi</name>
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<author><name sortKey="Vercesi, V" sort="Vercesi, V" uniqKey="Vercesi V" first="V." last="Vercesi">V. Vercesi</name>
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<author><name sortKey="Weidberg, A R" sort="Weidberg, A R" uniqKey="Weidberg A" first="A. R." last="Weidberg">A. R. Weidberg</name>
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<author><name sortKey="Wells, P S" sort="Wells, P S" uniqKey="Wells P" first="P. S." last="Wells">P. S. Wells</name>
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<author><name sortKey="White, T O" sort="White, T O" uniqKey="White T" first="T. O." last="White">T. O. White</name>
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<author><name sortKey="Wood, D R" sort="Wood, D R" uniqKey="Wood D" first="D. R." last="Wood">D. R. Wood</name>
</author>
<author><name sortKey="Wotton, S A" sort="Wotton, S A" uniqKey="Wotton S" first="S. A." last="Wotton">S. A. Wotton</name>
</author>
<author><name sortKey="Zaccone, H" sort="Zaccone, H" uniqKey="Zaccone H" first="H." last="Zaccone">H. Zaccone</name>
</author>
<author><name sortKey="Zylberstejn, A" sort="Zylberstejn, A" uniqKey="Zylberstejn A" first="A." last="Zylberstejn">A. Zylberstejn</name>
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<sourceDesc><biblStruct><analytic><title level="a">Study of electron pair production below the Z mass at the CERN pp collider</title>
<author><name sortKey="Alitti, J" sort="Alitti, J" uniqKey="Alitti J" first="J." last="Alitti">J. Alitti</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Ambrosini, G" sort="Ambrosini, G" uniqKey="Ambrosini G" first="G." last="Ambrosini">G. Ambrosini</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ansari, R" sort="Ansari, R" uniqKey="Ansari R" first="R." last="Ansari">R. Ansari</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Autiero, D" sort="Autiero, D" uniqKey="Autiero D" first="D." last="Autiero">D. Autiero</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
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</author>
<author><name sortKey="Bareyre, P" sort="Bareyre, P" uniqKey="Bareyre P" first="P." last="Bareyre">P. Bareyre</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
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</affiliation>
</author>
<author><name sortKey="Bertram, I A" sort="Bertram, I A" uniqKey="Bertram I" first="I. A." last="Bertram">I. A. Bertram</name>
<affiliation wicri:level="4"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Physics, University of Melbourne, Parkville 3052</wicri:regionArea>
<orgName type="university">Université de Melbourne</orgName>
<placeName><settlement type="city">Melbourne</settlement>
<region type="état">Victoria (État)</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Blaylock, G" sort="Blaylock, G" uniqKey="Blaylock G" first="G." last="Blaylock">G. Blaylock</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>1 Present address: University of California, Santa Cruz, CA 95064</wicri:regionArea>
<placeName><region type="state">Californie</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Bonamy, P" sort="Bonamy, P" uniqKey="Bonamy P" first="P." last="Bonamy">P. Bonamy</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<wicri:noRegion>91191 Gif-sur-Yvette Cedex</wicri:noRegion>
<wicri:noRegion>F-91191 Gif-sur-Yvette Cedex</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Borer, K" sort="Borer, K" uniqKey="Borer K" first="K." last="Borer">K. Borer</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Bourliaud, M" sort="Bourliaud, M" uniqKey="Bourliaud M" first="M." last="Bourliaud">M. Bourliaud</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Buskulic, D" sort="Buskulic, D" uniqKey="Buskulic D" first="D." last="Buskulic">D. Buskulic</name>
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<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<wicri:noRegion>91405 Orsay Cedex</wicri:noRegion>
<wicri:noRegion>F-91405 Orsay Cedex</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Carboni, G" sort="Carboni, G" uniqKey="Carboni G" first="G." last="Carboni">G. Carboni</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cavalli, D" sort="Cavalli, D" uniqKey="Cavalli D" first="D." last="Cavalli">D. Cavalli</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cavasinni, V" sort="Cavasinni, V" uniqKey="Cavasinni V" first="V." last="Cavasinni">V. Cavasinni</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cenci, P" sort="Cenci, P" uniqKey="Cenci P" first="P." last="Cenci">P. Cenci</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Chollet, J C" sort="Chollet, J C" uniqKey="Chollet J" first="J. C." last="Chollet">J. C. Chollet</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Conta, C" sort="Conta, C" uniqKey="Conta C" first="C." last="Conta">C. Conta</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Costa, G" sort="Costa, G" uniqKey="Costa G" first="G." last="Costa">G. Costa</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Costantini, F" sort="Costantini, F" uniqKey="Costantini F" first="F." last="Costantini">F. Costantini</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cozzi, L" sort="Cozzi, L" uniqKey="Cozzi L" first="L." last="Cozzi">L. Cozzi</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cravero, A" sort="Cravero, A" uniqKey="Cravero A" first="A." last="Cravero">A. Cravero</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Curatolo, M" sort="Curatolo, M" uniqKey="Curatolo M" first="M." last="Curatolo">M. Curatolo</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Dell Acqua, A" sort="Dell Acqua, A" uniqKey="Dell Acqua A" first="A." last="Dell'Acqua">A. Dell'Acqua</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Delprete, T" sort="Delprete, T" uniqKey="Delprete T" first="T." last="Delprete">T. Delprete</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Dewolf, R S" sort="Dewolf, R S" uniqKey="Dewolf R" first="R. S." last="Dewolf">R. S. Dewolf</name>
<affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Dilella, L" sort="Dilella, L" uniqKey="Dilella L" first="L." last="Dilella">L. Dilella</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ducros, Y" sort="Ducros, Y" uniqKey="Ducros Y" first="Y." last="Ducros">Y. Ducros</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Egan, G F" sort="Egan, G F" uniqKey="Egan G" first="G. F." last="Egan">G. F. Egan</name>
<affiliation wicri:level="4"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Physics, University of Melbourne, Parkville 3052</wicri:regionArea>
<orgName type="university">Université de Melbourne</orgName>
<placeName><settlement type="city">Melbourne</settlement>
<region type="état">Victoria (État)</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Einsweiler, K F" sort="Einsweiler, K F" uniqKey="Einsweiler K" first="K. F." last="Einsweiler">K. F. Einsweiler</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2 Present address: Lawrence Berkeley Laboratory, Berkeley, CA 94720</wicri:regionArea>
<placeName><region type="state">Californie</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Esposito, B" sort="Esposito, B" uniqKey="Esposito B" first="B." last="Esposito">B. Esposito</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Fayard, L" sort="Fayard, L" uniqKey="Fayard L" first="L." last="Fayard">L. Fayard</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Federspiel, A" sort="Federspiel, A" uniqKey="Federspiel A" first="A." last="Federspiel">A. Federspiel</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Ferrari, R" sort="Ferrari, R" uniqKey="Ferrari R" first="R." last="Ferrari">R. Ferrari</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Fraternali, M" sort="Fraternali, M" uniqKey="Fraternali M" first="M." last="Fraternali">M. Fraternali</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
<affiliation wicri:level="4"><country xml:lang="fr">Italie</country>
<wicri:regionArea>3 Present address: Istituto di Fisica, Università di Palermo, I-90133 Palermo</wicri:regionArea>
<orgName type="university">Université de Palerme</orgName>
<placeName><settlement type="city">Palerme</settlement>
<region type="region" nuts="2">Sicile</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Friodevaux, D" sort="Friodevaux, D" uniqKey="Friodevaux D" first="D." last="Friodevaux">D. Friodevaux</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Fumagalli, G" sort="Fumagalli, G" uniqKey="Fumagalli G" first="G." last="Fumagalli">G. Fumagalli</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Gaillard, J M" sort="Gaillard, J M" uniqKey="Gaillard J" first="J. M." last="Gaillard">J. M. Gaillard</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Gianotti, F" sort="Gianotti, F" uniqKey="Gianotti F" first="F." last="Gianotti">F. Gianotti</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Gildemeister, O" sort="Gildemeister, O" uniqKey="Gildemeister O" first="O." last="Gildemeister">O. Gildemeister</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Gossling, C" sort="Gossling, C" uniqKey="Gossling C" first="C." last="Gössling">C. Gössling</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
<settlement type="city">Dortmund</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Goggi, V G" sort="Goggi, V G" uniqKey="Goggi V" first="V. G." last="Goggi">V. G. Goggi</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Grunendahl, S" sort="Grunendahl, S" uniqKey="Grunendahl S" first="S." last="Grünendahl">S. Grünendahl</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Institut für Hochenergiephysik der Universität Heidelberg, Schröderstraβe 90, W-6900 Heidelberg</wicri:regionArea>
<placeName><region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
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</affiliation>
</author>
<author><name sortKey="Hara, K" sort="Hara, K" uniqKey="Hara K" first="K." last="Hara">K. Hara</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Japon</country>
<wicri:regionArea>4 Present address: University of Tsukuba, Tsukuba, Ibaraki 305</wicri:regionArea>
<wicri:noRegion>Ibaraki 305</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hellman, S" sort="Hellman, S" uniqKey="Hellman S" first="S." last="Hellman">S. Hellman</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hrivnac, J" sort="Hrivnac, J" uniqKey="Hrivnac J" first="J." last="Hrivnac">J. Hrivnac</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hufnagel, H" sort="Hufnagel, H" uniqKey="Hufnagel H" first="H." last="Hufnagel">H. Hufnagel</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
<settlement type="city">Dortmund</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Hugentobler, E" sort="Hugentobler, E" uniqKey="Hugentobler E" first="E." last="Hugentobler">E. Hugentobler</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Hultqvist, K" sort="Hultqvist, K" uniqKey="Hultqvist K" first="K." last="Hultqvist">K. Hultqvist</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Suède</country>
<wicri:regionArea>5 Present address: University of Stockholm, S-113 46 Stockholm</wicri:regionArea>
<wicri:noRegion>S-113 46 Stockholm</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Iacopini, E" sort="Iacopini, E" uniqKey="Iacopini E" first="E." last="Iacopini">E. Iacopini</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>6 Also at Scuola Normale Superiore, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Incandela, J" sort="Incandela, J" uniqKey="Incandela J" first="J." last="Incandela">J. Incandela</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Jakobs, K" sort="Jakobs, K" uniqKey="Jakobs K" first="K." last="Jakobs">K. Jakobs</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Jenni, P" sort="Jenni, P" uniqKey="Jenni P" first="P." last="Jenni">P. Jenni</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Kluge, E E" sort="Kluge, E E" uniqKey="Kluge E" first="E. E." last="Kluge">E. E. Kluge</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Institut für Hochenergiephysik der Universität Heidelberg, Schröderstraβe 90, W-6900 Heidelberg</wicri:regionArea>
<placeName><region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Kurz, N" sort="Kurz, N" uniqKey="Kurz N" first="N." last="Kurz">N. Kurz</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Institut für Hochenergiephysik der Universität Heidelberg, Schröderstraβe 90, W-6900 Heidelberg</wicri:regionArea>
<placeName><region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Lami, S" sort="Lami, S" uniqKey="Lami S" first="S." last="Lami">S. Lami</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Lariccia, P" sort="Lariccia, P" uniqKey="Lariccia P" first="P." last="Lariccia">P. Lariccia</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Lefebvre, M" sort="Lefebvre, M" uniqKey="Lefebvre M" first="M." last="Lefebvre">M. Lefebvre</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Linssen, L" sort="Linssen, L" uniqKey="Linssen L" first="L." last="Linssen">L. Linssen</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Livan, M" sort="Livan, M" uniqKey="Livan M" first="M." last="Livan">M. Livan</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>7 Present address: Dipartimento di Fisica, Università di Cagliari, I-09100 Cagliari</wicri:regionArea>
<wicri:noRegion>I-09100 Cagliari</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Lubrano, P" sort="Lubrano, P" uniqKey="Lubrano P" first="P." last="Lubrano">P. Lubrano</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Magneville, C" sort="Magneville, C" uniqKey="Magneville C" first="C." last="Magneville">C. Magneville</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<wicri:noRegion>91191 Gif-sur-Yvette Cedex</wicri:noRegion>
<wicri:noRegion>F-91191 Gif-sur-Yvette Cedex</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mandelli, L" sort="Mandelli, L" uniqKey="Mandelli L" first="L." last="Mandelli">L. Mandelli</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mapelli, L" sort="Mapelli, L" uniqKey="Mapelli L" first="L." last="Mapelli">L. Mapelli</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mazzanti, M" sort="Mazzanti, M" uniqKey="Mazzanti M" first="M." last="Mazzanti">M. Mazzanti</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Meier, K" sort="Meier, K" uniqKey="Meier K" first="K." last="Meier">K. Meier</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Allemagne</country>
<wicri:regionArea>8 Present address: Deutsches Elektronen Synchrotron, W-2000 Hamburg</wicri:regionArea>
<wicri:noRegion>W-2000 Hamburg</wicri:noRegion>
<wicri:noRegion>W-2000 Hamburg</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Merkel, B" sort="Merkel, B" uniqKey="Merkel B" first="B." last="Merkel">B. Merkel</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<wicri:noRegion>91405 Orsay Cedex</wicri:noRegion>
<wicri:noRegion>F-91405 Orsay Cedex</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Meyer, J P" sort="Meyer, J P" uniqKey="Meyer J" first="J. P." last="Meyer">J. P. Meyer</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Moniez, M" sort="Moniez, M" uniqKey="Moniez M" first="M." last="Moniez">M. Moniez</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<wicri:noRegion>91405 Orsay Cedex</wicri:noRegion>
<wicri:noRegion>F-91405 Orsay Cedex</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Moning, R" sort="Moning, R" uniqKey="Moning R" first="R." last="Moning">R. Moning</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Morganti, M" sort="Morganti, M" uniqKey="Morganti M" first="M." last="Morganti">M. Morganti</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
<affiliation wicri:level="4"><country xml:lang="fr">Italie</country>
<wicri:regionArea>9 Present address: Dipartimento di Fisica e INFN, Sezione di Bologna, Università di Bologna, I-40126 Bologna</wicri:regionArea>
<orgName type="university">Université de Bologne</orgName>
<placeName><settlement type="city">Bologne</settlement>
<region nuts="2" type="region">Émilie-Romagne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Muller, L" sort="Muller, L" uniqKey="Muller L" first="L." last="Müller">L. Müller</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Munday, D J" sort="Munday, D J" uniqKey="Munday D" first="D. J." last="Munday">D. J. Munday</name>
<affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Nessi, M" sort="Nessi, M" uniqKey="Nessi M" first="M." last="Nessi">M. Nessi</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Nessi Tedaldi, F" sort="Nessi Tedaldi, F" uniqKey="Nessi Tedaldi F" first="F." last="Nessi-Tedaldi">F. Nessi-Tedaldi</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Onions, C" sort="Onions, C" uniqKey="Onions C" first="C." last="Onions">C. Onions</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Pal, T" sort="Pal, T" uniqKey="Pal T" first="T." last="Pal">T. Pal</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Parker, M A" sort="Parker, M A" uniqKey="Parker M" first="M. A." last="Parker">M. A. Parker</name>
<affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Parrour, G" sort="Parrour, G" uniqKey="Parrour G" first="G." last="Parrour">G. Parrour</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Pastore, F" sort="Pastore, F" uniqKey="Pastore F" first="F." last="Pastore">F. Pastore</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Pennacchio, E" sort="Pennacchio, E" uniqKey="Pennacchio E" first="E." last="Pennacchio">E. Pennacchio</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Pentney, J M" sort="Pentney, J M" uniqKey="Pentney J" first="J. M." last="Pentney">J. M. Pentney</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Pepe, M" sort="Pepe, M" uniqKey="Pepe M" first="M." last="Pepe">M. Pepe</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Perini, L" sort="Perini, L" uniqKey="Perini L" first="L." last="Perini">L. Perini</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Milano and INFN, Sezione di Milano, I-20133 Milan</wicri:regionArea>
<wicri:noRegion>I-20133 Milan</wicri:noRegion>
</affiliation>
<affiliation wicri:level="4"><country xml:lang="fr">Italie</country>
<wicri:regionArea>3 Present address: Istituto di Fisica, Università di Palermo, I-90133 Palermo</wicri:regionArea>
<orgName type="university">Université de Palerme</orgName>
<placeName><settlement type="city">Palerme</settlement>
<region type="region" nuts="2">Sicile</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Petridou, C" sort="Petridou, C" uniqKey="Petridou C" first="C." last="Petridou">C. Petridou</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Petroff, P" sort="Petroff, P" uniqKey="Petroff P" first="P." last="Petroff">P. Petroff</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Plothow Besch, H" sort="Plothow Besch, H" uniqKey="Plothow Besch H" first="H." last="Plothow-Besch">H. Plothow-Besch</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Polesello, G" sort="Polesello, G" uniqKey="Polesello G" first="G." last="Polesello">G. Polesello</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
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<author><name sortKey="Poppleton, A" sort="Poppleton, A" uniqKey="Poppleton A" first="A." last="Poppleton">A. Poppleton</name>
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<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Pretzl, K" sort="Pretzl, K" uniqKey="Pretzl K" first="K." last="Pretzl">K. Pretzl</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Primavera, M" sort="Primavera, M" uniqKey="Primavera M" first="M." last="Primavera">M. Primavera</name>
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<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
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<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
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<author><name sortKey="Punturo, M" sort="Punturo, M" uniqKey="Punturo M" first="M." last="Punturo">M. Punturo</name>
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<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Repellin, J P" sort="Repellin, J P" uniqKey="Repellin J" first="J. P." last="Repellin">J. P. Repellin</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
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<author><name sortKey="Rimoldi, A" sort="Rimoldi, A" uniqKey="Rimoldi A" first="A." last="Rimoldi">A. Rimoldi</name>
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<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
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</author>
<author><name sortKey="Sacchi, M" sort="Sacchi, M" uniqKey="Sacchi M" first="M." last="Sacchi">M. Sacchi</name>
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<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Scampoli, P" sort="Scampoli, P" uniqKey="Scampoli P" first="P." last="Scampoli">P. Scampoli</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Schacher, J" sort="Schacher, J" uniqKey="Schacher J" first="J." last="Schacher">J. Schacher</name>
<affiliation wicri:level="4"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>Laboratorium für Hochenergiephysik, Universität Bern, Sidlerstraβe 5, CH-3012 Bern</wicri:regionArea>
<orgName type="university">Université de Berne</orgName>
<placeName><settlement type="city">Berne</settlement>
<region nuts="3" type="region">Canton de Berne</region>
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</affiliation>
</author>
<author><name sortKey="Schmidt, B" sort="Schmidt, B" uniqKey="Schmidt B" first="B." last="Schmidt">B. Schmidt</name>
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<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
<settlement type="city">Dortmund</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Simak, V" sort="Simak, V" uniqKey="Simak V" first="V." last="Simak">V. Simak</name>
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<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Singh, S L" sort="Singh, S L" uniqKey="Singh S" first="S. L." last="Singh">S. L. Singh</name>
<affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Sondermann, V" sort="Sondermann, V" uniqKey="Sondermann V" first="V." last="Sondermann">V. Sondermann</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
<settlement type="city">Dortmund</settlement>
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</affiliation>
</author>
<author><name sortKey="Spiwoks, R" sort="Spiwoks, R" uniqKey="Spiwoks R" first="R." last="Spiwoks">R. Spiwoks</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
<settlement type="city">Dortmund</settlement>
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</affiliation>
</author>
<author><name sortKey="Stapnes, S" sort="Stapnes, S" uniqKey="Stapnes S" first="S." last="Stapnes">S. Stapnes</name>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>CERN, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
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</author>
<author><name sortKey="Talamonti, C" sort="Talamonti, C" uniqKey="Talamonti C" first="C." last="Talamonti">C. Talamonti</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
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</author>
<author><name sortKey="Tondini, F" sort="Tondini, F" uniqKey="Tondini F" first="F." last="Tondini">F. Tondini</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Perugia and INFN, Sezione di Perugia, via Pascoli, I-06100 Perugia</wicri:regionArea>
<wicri:noRegion>I-06100 Perugia</wicri:noRegion>
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</author>
<author><name sortKey="Tovey, S N" sort="Tovey, S N" uniqKey="Tovey S" first="S. N." last="Tovey">S. N. Tovey</name>
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<wicri:regionArea>School of Physics, University of Melbourne, Parkville 3052</wicri:regionArea>
<orgName type="university">Université de Melbourne</orgName>
<placeName><settlement type="city">Melbourne</settlement>
<region type="état">Victoria (État)</region>
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</affiliation>
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<author><name sortKey="Tsesmelis, E" sort="Tsesmelis, E" uniqKey="Tsesmelis E" first="E." last="Tsesmelis">E. Tsesmelis</name>
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<wicri:regionArea>Lehrstuhl für Experimental Physik IV, Universität Dortmund, W-4600 Dortmund</wicri:regionArea>
<placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region>
<region type="district" nuts="2">District d'Arnsberg</region>
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</affiliation>
</author>
<author><name sortKey="Unal, G" sort="Unal, G" uniqKey="Unal G" first="G." last="Unal">G. Unal</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Laboratiore de l'Accélérateur Linéaire, Université de Paris-Sud, F-91405 Orsay Cedex</wicri:regionArea>
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<wicri:noRegion>F-91405 Orsay Cedex</wicri:noRegion>
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<author><name sortKey="Valdata Nappi, M" sort="Valdata Nappi, M" uniqKey="Valdata Nappi M" first="M." last="Valdata-Nappi">M. Valdata-Nappi</name>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>Dipartimento di Fisica dell'Università di Pisa and INFN, Sezione di Pisa, Via Livornese, S. Piero a Grado, I-56100 Pisa</wicri:regionArea>
<wicri:noRegion>I-56100 Pisa</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Italie</country>
<wicri:regionArea>10 Present address: Dipartimento di Fisica dell'Università della Calabria e gruppo INFN, Cosenza</wicri:regionArea>
<wicri:noRegion>Cosenza</wicri:noRegion>
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</author>
<author><name sortKey="Vercesi, V" sort="Vercesi, V" uniqKey="Vercesi V" first="V." last="Vercesi">V. Vercesi</name>
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<wicri:regionArea>Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia</wicri:regionArea>
<wicri:noRegion>I-27100 Pavia</wicri:noRegion>
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</author>
<author><name sortKey="Weidberg, A R" sort="Weidberg, A R" uniqKey="Weidberg A" first="A. R." last="Weidberg">A. R. Weidberg</name>
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<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
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<affiliation wicri:level="4"><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country>
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<author><name sortKey="Wells, P S" sort="Wells, P S" uniqKey="Wells P" first="P. S." last="Wells">P. S. Wells</name>
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<orgName type="university">Université de Cambridge</orgName>
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<region type="country">Angleterre</region>
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</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
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<author><name sortKey="White, T O" sort="White, T O" uniqKey="White T" first="T. O." last="White">T. O. White</name>
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<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
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<author><name sortKey="Wood, D R" sort="Wood, D R" uniqKey="Wood D" first="D. R." last="Wood">D. R. Wood</name>
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<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
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</affiliation>
</author>
<author><name sortKey="Wotton, S A" sort="Wotton, S A" uniqKey="Wotton S" first="S. A." last="Wotton">S. A. Wotton</name>
<affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE</wicri:regionArea>
<orgName type="university">Université de Cambridge</orgName>
<placeName><settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr">Suisse</country>
<wicri:regionArea>12 Present address: CERn, CH-1211 Geneva 23</wicri:regionArea>
<wicri:noRegion>CH-1211 Geneva 23</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Zaccone, H" sort="Zaccone, H" uniqKey="Zaccone H" first="H." last="Zaccone">H. Zaccone</name>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
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<author><name sortKey="Zylberstejn, A" sort="Zylberstejn, A" uniqKey="Zylberstejn A" first="A." last="Zylberstejn">A. Zylberstejn</name>
<affiliation wicri:level="1"><country xml:lang="fr">France</country>
<wicri:regionArea>Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex</wicri:regionArea>
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<series><title level="j">Physics Letters B</title>
<title level="j" type="abbrev">PLB</title>
<idno type="ISSN">0370-2693</idno>
<imprint><publisher>ELSEVIER</publisher>
<date type="published" when="1992">1992</date>
<biblScope unit="volume">275</biblScope>
<biblScope unit="issue">1–2</biblScope>
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<idno type="ISSN">0370-2693</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Background events</term>
<term>Beam axis</term>
<term>Calorimeter</term>
<term>Central calorimeter</term>
<term>Central detector</term>
<term>Detector</term>
<term>Detector acceptance</term>
<term>Digital microelectronics</term>
<term>Edge cells</term>
<term>Electromagnetic</term>
<term>Electromagnetic showers</term>
<term>Electron candidates</term>
<term>Electron pair mass</term>
<term>Electron pair production</term>
<term>Electron pairs</term>
<term>Electron selection criteria</term>
<term>Electron signature</term>
<term>Endcap calorimeters</term>
<term>Event sample</term>
<term>Fisica</term>
<term>Genuine electron pairs</term>
<term>Hadronic jets</term>
<term>Lepton</term>
<term>Lepton pair</term>
<term>Lepton pair production</term>
<term>Lett</term>
<term>Luminosity</term>
<term>Mass interval</term>
<term>Monte carlo programme</term>
<term>Nucl</term>
<term>Number physics letters</term>
<term>Particle physics</term>
<term>Phys</term>
<term>Physics letters</term>
<term>Preprint phys</term>
<term>Present address</term>
<term>Present analysis</term>
<term>Radiation length</term>
<term>Silicon arrays</term>
<term>Solid line</term>
<term>Systematic uncertainties</term>
<term>Test beam data</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Background events</term>
<term>Beam axis</term>
<term>Calorimeter</term>
<term>Central calorimeter</term>
<term>Central detector</term>
<term>Detector</term>
<term>Detector acceptance</term>
<term>Digital microelectronics</term>
<term>Edge cells</term>
<term>Electromagnetic</term>
<term>Electromagnetic showers</term>
<term>Electron candidates</term>
<term>Electron pair mass</term>
<term>Electron pair production</term>
<term>Electron pairs</term>
<term>Electron selection criteria</term>
<term>Electron signature</term>
<term>Endcap calorimeters</term>
<term>Event sample</term>
<term>Fisica</term>
<term>Genuine electron pairs</term>
<term>Hadronic jets</term>
<term>Lepton</term>
<term>Lepton pair</term>
<term>Lepton pair production</term>
<term>Lett</term>
<term>Luminosity</term>
<term>Mass interval</term>
<term>Monte carlo programme</term>
<term>Nucl</term>
<term>Number physics letters</term>
<term>Particle physics</term>
<term>Phys</term>
<term>Physics letters</term>
<term>Preprint phys</term>
<term>Present address</term>
<term>Present analysis</term>
<term>Radiation length</term>
<term>Silicon arrays</term>
<term>Solid line</term>
<term>Systematic uncertainties</term>
<term>Test beam data</term>
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<front><div type="abstract" xml:lang="en">Abstract: Results on the cross section for the production of electron pairs in pp collisions at √s = 630 GeV are presented. The measured value is σ = 405 ± 51 (syst.) ± 84 (syst.) pb, in the invariant mass interval 10 < m< 70 GeV. The results are compared to recent theoretical calculations which include O(αs2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable √τ = m √s.</div>
</front>
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