Measurement of the atmospheric muon charge ratio with the OPERA detector
Identifieur interne : 000192 ( PascalFrancis/Corpus ); précédent : 000191; suivant : 000193Measurement of the atmospheric muon charge ratio with the OPERA detector
Auteurs : N. Agafonova ; A. Anokhina ; S. Aoki ; A. Ariga ; T. Ariga ; D. Autiero ; A. Badertscher ; A. Bagulya ; A. Bertolin ; M. Besnier ; D. Bick ; V. Boyarkin ; C. Bozza ; T. Brugiere ; R. Brugnera ; G. Brunetti ; S. Buontempo ; A. Cazes ; L. Chaussard ; M. Chernyavsky ; V. Chiarella ; N. Chon-Sen ; A. Chukanov ; M. Cozzi ; G. D'Amato ; F. Dal Corso ; N. D'Ambrosio ; G. De Lellis ; Y. Declais ; M. De Serio ; F. Di Capua ; D. Di Ferdinando ; A. Di Giovanni ; N. Di Marco ; S. Dmitrievski ; M. Dracos ; D. Duchesneau ; S. Dusini ; J. Ebert ; O. Egorov ; R. Enikeev ; A. Ereditato ; L. S. Esposito ; J. Favier ; G. Felici ; T. Ferber ; R. Fini ; D. Frekers ; T. Fukuda ; C. Fukushima ; V. I. Galkin ; A. Garfagnini ; G. Giacomelli ; M. Giorgini ; C. Goellnitz ; J. Goldberg ; D. Golubkov ; L. Goncharova ; Y. Gornushkin ; G. GrellaSource :
- The European physical journal. C, Particles and fields [ 1434-6044 ] ; 2010.
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English descriptors
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Abstract
The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = Nμ+/Nμ- in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the Rμ dependence on the primary composition. The measured Rμ values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy" εμ cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.
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| NO : | PASCAL 10-0259960 INIST |
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| ET : | Measurement of the atmospheric muon charge ratio with the OPERA detector |
| AU : | AGAFONOVA (N.); ANOKHINA (A.); AOKI (S.); ARIGA (A.); ARIGA (T.); AUTIERO (D.); BADERTSCHER (A.); BAGULYA (A.); BERTOLIN (A.); BESNIER (M.); BICK (D.); BOYARKIN (V.); BOZZA (C.); BRUGIERE (T.); BRUGNERA (R.); BRUNETTI (G.); BUONTEMPO (S.); CAZES (A.); CHAUSSARD (L.); CHERNYAVSKY (M.); CHIARELLA (V.); CHON-SEN (N.); CHUKANOV (A.); COZZI (M.); D'AMATO (G.); DAL CORSO (F.); D'AMBROSIO (N.); DE LELLIS (G.); DECLAIS (Y.); DE SERIO (M.); DI CAPUA (F.); DI FERDINANDO (D.); DI GIOVANNI (A.); DI MARCO (N.); DMITRIEVSKI (S.); DRACOS (M.); DUCHESNEAU (D.); DUSINI (S.); EBERT (J.); EGOROV (O.); ENIKEEV (R.); EREDITATO (A.); ESPOSITO (L. S.); FAVIER (J.); FELICI (G.); FERBER (T.); FINI (R.); FREKERS (D.); FUKUDA (T.); FUKUSHIMA (C.); GALKIN (V. I.); GARFAGNINI (A.); GIACOMELLI (G.); GIORGINI (M.); GOELLNITZ (C.); GOLDBERG (J.); GOLUBKOV (D.); GONCHAROVA (L.); GORNUSHKIN (Y.); GRELLA (G.) |
| AF : | INR-Institute for Nuclear Research of the Russian Academy of Sciences/117312 Moscow/Russie (1 aut., 12 aut., 41 aut.); SINP MSU-Skobeltsyn Institute of Nuclear Physics of Moscow State University/119992 Moscow/Russie (2 aut., 51 aut.); Kobe University/657-8501 Kobe/Japon (3 aut.); Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), University of Bern/3012 Bern/Suisse (4 aut., 5 aut., 42 aut.); IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3/69622 Villeurbanne/France (6 aut., 14 aut., 18 aut., 19 aut., 29 aut.); ETH Zurich, Institute for Particle Physics/8093 Zurich/Suisse (7 aut., 10 aut.); LPI-Lebedev Physical Institute of the Russian Academy of Sciences/117924 Moscow/Russie (8 aut., 20 aut., 58 aut.); INFN Sezione di Padova/35131 Padova/Italie (9 aut., 15 aut., 26 aut., 38 aut., 52 aut.); LAPP, Université de Savoie, CNRS/IN2P3/74941 Annecy-le-Vieux/France (10 aut., 37 aut., 44 aut.); Hamburg University/22761 Hamburg/Allemagne (11 aut., 39 aut., 46 aut., 55 aut.); Dipartimento di Fisica dell'Università di Salerno and INFN/84084 Fisciano, Salerno/Italie (13 aut., 25 aut., 60 aut.); Dipartimento di Fisica dell'Università di Padova/35131 Padova/Italie (15 aut., 52 aut.); Dipartimento di Fisica dell'Università di Bologna/40127 Bologna/Italie (16 aut., 24 aut., 53 aut., 54 aut.); INFN Sezione di Bologna/40127 Bologna/Italie (16 aut., 32 aut., 53 aut., 54 aut.); INFN Sezione di Napoli/80125 Napoli/Italie (17 aut., 23 aut., 28 aut., 31 aut.); INFN-Laboratori Nazionali di Frascati dell'INFN/00044 Frascati (Roma)/Italie (21 aut., 45 aut.); IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3/67037 Strasbourg/France (22 aut., 36 aut.); INFN-Laboratori Nazionali del Gran Sasso/67010 Assergi (L'Aquila)/Italie (27 aut., 33 aut., 43 aut.); Dipartimento di Fisica dell'Università Federico II di Napoli/80125 Napoli/Italie (28 aut.); INFN Sezione di Bari/70126 Bari/Italie (30 aut., 47 aut.); Dipartimento di Fisica dell'Università dell'Aquila and INFN/67100 L'Aquila/Italie (34 aut.); JINR-Joint Institute for Nuclear Research/141980 Dubna/Russie (35 aut., 59 aut.); ITEP-Institute for Theoretical and Experimental Physics/117218 Moscow/Russie (40 aut., 57 aut.); University of Münster/48149 Münster/Allemagne (48 aut.); Nagoya University/464-8602 Nagoya/Japon (49 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | The European physical journal. C, Particles and fields; ISSN 1434-6044; Allemagne; Da. 2010; Vol. 67; No. 1-2; Pp. 25-37; Bibl. 28 ref. |
| LA : | Anglais |
| EA : | The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = Nμ+/Nμ- in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the Rμ dependence on the primary composition. The measured Rμ values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy" εμ cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum. |
| CC : | 001B10 |
| FD : | Muon; Domaine énergie TeV; Rayonnement cosmique primaire; Modèle; Production muon; Méson pi; Méson K; Kaon; Rayonnement cosmique; Spectre énergie; Physique mathématique; Particule élémentaire |
| ED : | Muons; TeV range; Primary cosmic radiation; Models; Muon production; Pions; Kaons; Kaons; Cosmic radiation; Energy spectra; Mathematical physics; Elementary particles |
| SD : | Modelo; Mesón pi; Mesón K |
| LO : | INIST-27152.354000182158640020 |
| ID : | 10-0259960 |
Links to Exploration step
Pascal:10-0259960Le document en format XML
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Cazes</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chaussard, L" sort="Chaussard, L" uniqKey="Chaussard L" first="L." last="Chaussard">L. Chaussard</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chernyavsky, M" sort="Chernyavsky, M" uniqKey="Chernyavsky M" first="M." last="Chernyavsky">M. Chernyavsky</name><affiliation><inist:fA14 i1="07"><s1>LPI-Lebedev Physical Institute of the Russian Academy of Sciences</s1><s2>117924 Moscow</s2><s3>RUS</s3><sZ>8 aut.</sZ><sZ>20 aut.</sZ><sZ>58 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chiarella, V" sort="Chiarella, V" uniqKey="Chiarella V" first="V." last="Chiarella">V. Chiarella</name><affiliation><inist:fA14 i1="16"><s1>INFN-Laboratori Nazionali di Frascati dell'INFN</s1><s2>00044 Frascati (Roma)</s2><s3>ITA</s3><sZ>21 aut.</sZ><sZ>45 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chon Sen, N" sort="Chon Sen, N" uniqKey="Chon Sen N" first="N." last="Chon-Sen">N. Chon-Sen</name><affiliation><inist:fA14 i1="17"><s1>IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3</s1><s2>67037 Strasbourg</s2><s3>FRA</s3><sZ>22 aut.</sZ><sZ>36 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chukanov, A" sort="Chukanov, A" uniqKey="Chukanov A" first="A." last="Chukanov">A. Chukanov</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Cozzi, M" sort="Cozzi, M" uniqKey="Cozzi M" first="M." last="Cozzi">M. Cozzi</name><affiliation><inist:fA14 i1="13"><s1>Dipartimento di Fisica dell'Università di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>24 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="D Amato, G" sort="D Amato, G" uniqKey="D Amato G" first="G." last="D'Amato">G. D'Amato</name><affiliation><inist:fA14 i1="11"><s1>Dipartimento di Fisica dell'Università di Salerno and INFN</s1><s2>84084 Fisciano, Salerno</s2><s3>ITA</s3><sZ>13 aut.</sZ><sZ>25 aut.</sZ><sZ>60 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dal Corso, F" sort="Dal Corso, F" uniqKey="Dal Corso F" first="F." last="Dal Corso">F. Dal Corso</name><affiliation><inist:fA14 i1="08"><s1>INFN Sezione di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>9 aut.</sZ><sZ>15 aut.</sZ><sZ>26 aut.</sZ><sZ>38 aut.</sZ><sZ>52 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="D Ambrosio, N" sort="D Ambrosio, N" uniqKey="D Ambrosio N" first="N." last="D'Ambrosio">N. D'Ambrosio</name><affiliation><inist:fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="De Lellis, G" sort="De Lellis, G" uniqKey="De Lellis G" first="G." last="De Lellis">G. De Lellis</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="19"><s1>Dipartimento di Fisica dell'Università Federico II di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>28 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Declais, Y" sort="Declais, Y" uniqKey="Declais Y" first="Y." last="Declais">Y. Declais</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="De Serio, M" sort="De Serio, M" uniqKey="De Serio M" first="M." last="De Serio">M. De Serio</name><affiliation><inist:fA14 i1="20"><s1>INFN Sezione di Bari</s1><s2>70126 Bari</s2><s3>ITA</s3><sZ>30 aut.</sZ><sZ>47 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Capua, F" sort="Di Capua, F" uniqKey="Di Capua F" first="F." last="Di Capua">F. Di Capua</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Ferdinando, D" sort="Di Ferdinando, D" uniqKey="Di Ferdinando D" first="D." last="Di Ferdinando">D. Di Ferdinando</name><affiliation><inist:fA14 i1="14"><s1>INFN Sezione di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>32 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Giovanni, A" sort="Di Giovanni, A" uniqKey="Di Giovanni A" first="A." last="Di Giovanni">A. Di Giovanni</name><affiliation><inist:fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Marco, N" sort="Di Marco, N" uniqKey="Di Marco N" first="N." last="Di Marco">N. Di Marco</name><affiliation><inist:fA14 i1="21"><s1>Dipartimento di Fisica dell'Università dell'Aquila and INFN</s1><s2>67100 L'Aquila</s2><s3>ITA</s3><sZ>34 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dmitrievski, S" sort="Dmitrievski, S" uniqKey="Dmitrievski S" first="S." last="Dmitrievski">S. Dmitrievski</name><affiliation><inist:fA14 i1="22"><s1>JINR-Joint Institute for Nuclear Research</s1><s2>141980 Dubna</s2><s3>RUS</s3><sZ>35 aut.</sZ><sZ>59 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dracos, M" sort="Dracos, M" uniqKey="Dracos M" first="M." last="Dracos">M. 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Cazes</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chaussard, L" sort="Chaussard, L" uniqKey="Chaussard L" first="L." last="Chaussard">L. Chaussard</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chernyavsky, M" sort="Chernyavsky, M" uniqKey="Chernyavsky M" first="M." last="Chernyavsky">M. Chernyavsky</name><affiliation><inist:fA14 i1="07"><s1>LPI-Lebedev Physical Institute of the Russian Academy of Sciences</s1><s2>117924 Moscow</s2><s3>RUS</s3><sZ>8 aut.</sZ><sZ>20 aut.</sZ><sZ>58 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chiarella, V" sort="Chiarella, V" uniqKey="Chiarella V" first="V." last="Chiarella">V. Chiarella</name><affiliation><inist:fA14 i1="16"><s1>INFN-Laboratori Nazionali di Frascati dell'INFN</s1><s2>00044 Frascati (Roma)</s2><s3>ITA</s3><sZ>21 aut.</sZ><sZ>45 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chon Sen, N" sort="Chon Sen, N" uniqKey="Chon Sen N" first="N." last="Chon-Sen">N. Chon-Sen</name><affiliation><inist:fA14 i1="17"><s1>IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3</s1><s2>67037 Strasbourg</s2><s3>FRA</s3><sZ>22 aut.</sZ><sZ>36 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Chukanov, A" sort="Chukanov, A" uniqKey="Chukanov A" first="A." last="Chukanov">A. Chukanov</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Cozzi, M" sort="Cozzi, M" uniqKey="Cozzi M" first="M." last="Cozzi">M. Cozzi</name><affiliation><inist:fA14 i1="13"><s1>Dipartimento di Fisica dell'Università di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>24 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="D Amato, G" sort="D Amato, G" uniqKey="D Amato G" first="G." last="D'Amato">G. D'Amato</name><affiliation><inist:fA14 i1="11"><s1>Dipartimento di Fisica dell'Università di Salerno and INFN</s1><s2>84084 Fisciano, Salerno</s2><s3>ITA</s3><sZ>13 aut.</sZ><sZ>25 aut.</sZ><sZ>60 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dal Corso, F" sort="Dal Corso, F" uniqKey="Dal Corso F" first="F." last="Dal Corso">F. Dal Corso</name><affiliation><inist:fA14 i1="08"><s1>INFN Sezione di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>9 aut.</sZ><sZ>15 aut.</sZ><sZ>26 aut.</sZ><sZ>38 aut.</sZ><sZ>52 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="D Ambrosio, N" sort="D Ambrosio, N" uniqKey="D Ambrosio N" first="N." last="D'Ambrosio">N. D'Ambrosio</name><affiliation><inist:fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="De Lellis, G" sort="De Lellis, G" uniqKey="De Lellis G" first="G." last="De Lellis">G. De Lellis</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="19"><s1>Dipartimento di Fisica dell'Università Federico II di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>28 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Declais, Y" sort="Declais, Y" uniqKey="Declais Y" first="Y." last="Declais">Y. Declais</name><affiliation><inist:fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="De Serio, M" sort="De Serio, M" uniqKey="De Serio M" first="M." last="De Serio">M. De Serio</name><affiliation><inist:fA14 i1="20"><s1>INFN Sezione di Bari</s1><s2>70126 Bari</s2><s3>ITA</s3><sZ>30 aut.</sZ><sZ>47 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Capua, F" sort="Di Capua, F" uniqKey="Di Capua F" first="F." last="Di Capua">F. Di Capua</name><affiliation><inist:fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Ferdinando, D" sort="Di Ferdinando, D" uniqKey="Di Ferdinando D" first="D." last="Di Ferdinando">D. Di Ferdinando</name><affiliation><inist:fA14 i1="14"><s1>INFN Sezione di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>32 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Giovanni, A" sort="Di Giovanni, A" uniqKey="Di Giovanni A" first="A." last="Di Giovanni">A. Di Giovanni</name><affiliation><inist:fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Di Marco, N" sort="Di Marco, N" uniqKey="Di Marco N" first="N." last="Di Marco">N. Di Marco</name><affiliation><inist:fA14 i1="21"><s1>Dipartimento di Fisica dell'Università dell'Aquila and INFN</s1><s2>67100 L'Aquila</s2><s3>ITA</s3><sZ>34 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dmitrievski, S" sort="Dmitrievski, S" uniqKey="Dmitrievski S" first="S." last="Dmitrievski">S. Dmitrievski</name><affiliation><inist:fA14 i1="22"><s1>JINR-Joint Institute for Nuclear Research</s1><s2>141980 Dubna</s2><s3>RUS</s3><sZ>35 aut.</sZ><sZ>59 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dracos, M" sort="Dracos, M" uniqKey="Dracos M" first="M." last="Dracos">M. Dracos</name><affiliation><inist:fA14 i1="17"><s1>IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3</s1><s2>67037 Strasbourg</s2><s3>FRA</s3><sZ>22 aut.</sZ><sZ>36 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Duchesneau, D" sort="Duchesneau, D" uniqKey="Duchesneau D" first="D." last="Duchesneau">D. Duchesneau</name><affiliation><inist:fA14 i1="09"><s1>LAPP, Université de Savoie, CNRS/IN2P3</s1><s2>74941 Annecy-le-Vieux</s2><s3>FRA</s3><sZ>10 aut.</sZ><sZ>37 aut.</sZ><sZ>44 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dusini, S" sort="Dusini, S" uniqKey="Dusini S" first="S." last="Dusini">S. Dusini</name><affiliation><inist:fA14 i1="08"><s1>INFN Sezione di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>9 aut.</sZ><sZ>15 aut.</sZ><sZ>26 aut.</sZ><sZ>38 aut.</sZ><sZ>52 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ebert, J" sort="Ebert, J" uniqKey="Ebert J" first="J." last="Ebert">J. Ebert</name><affiliation><inist:fA14 i1="10"><s1>Hamburg University</s1><s2>22761 Hamburg</s2><s3>DEU</s3><sZ>11 aut.</sZ><sZ>39 aut.</sZ><sZ>46 aut.</sZ><sZ>55 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Egorov, O" sort="Egorov, O" uniqKey="Egorov O" first="O." last="Egorov">O. Egorov</name><affiliation><inist:fA14 i1="23"><s1>ITEP-Institute for Theoretical and Experimental Physics</s1><s2>117218 Moscow</s2><s3>RUS</s3><sZ>40 aut.</sZ><sZ>57 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Enikeev, R" sort="Enikeev, R" uniqKey="Enikeev R" first="R." last="Enikeev">R. Enikeev</name><affiliation><inist:fA14 i1="01"><s1>INR-Institute for Nuclear Research of the Russian Academy of Sciences</s1><s2>117312 Moscow</s2><s3>RUS</s3><sZ>1 aut.</sZ><sZ>12 aut.</sZ><sZ>41 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ereditato, A" sort="Ereditato, A" uniqKey="Ereditato A" first="A." last="Ereditato">A. Ereditato</name><affiliation><inist:fA14 i1="04"><s1>Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), University of Bern</s1><s2>3012 Bern</s2><s3>CHE</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>42 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Esposito, L S" sort="Esposito, L S" uniqKey="Esposito L" first="L. S." last="Esposito">L. S. Esposito</name><affiliation><inist:fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Favier, J" sort="Favier, J" uniqKey="Favier J" first="J." last="Favier">J. Favier</name><affiliation><inist:fA14 i1="09"><s1>LAPP, Université de Savoie, CNRS/IN2P3</s1><s2>74941 Annecy-le-Vieux</s2><s3>FRA</s3><sZ>10 aut.</sZ><sZ>37 aut.</sZ><sZ>44 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Felici, G" sort="Felici, G" uniqKey="Felici G" first="G." last="Felici">G. Felici</name><affiliation><inist:fA14 i1="16"><s1>INFN-Laboratori Nazionali di Frascati dell'INFN</s1><s2>00044 Frascati (Roma)</s2><s3>ITA</s3><sZ>21 aut.</sZ><sZ>45 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ferber, T" sort="Ferber, T" uniqKey="Ferber T" first="T." last="Ferber">T. Ferber</name><affiliation><inist:fA14 i1="10"><s1>Hamburg University</s1><s2>22761 Hamburg</s2><s3>DEU</s3><sZ>11 aut.</sZ><sZ>39 aut.</sZ><sZ>46 aut.</sZ><sZ>55 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Fini, R" sort="Fini, R" uniqKey="Fini R" first="R." last="Fini">R. Fini</name><affiliation><inist:fA14 i1="20"><s1>INFN Sezione di Bari</s1><s2>70126 Bari</s2><s3>ITA</s3><sZ>30 aut.</sZ><sZ>47 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Frekers, D" sort="Frekers, D" uniqKey="Frekers D" first="D." last="Frekers">D. Frekers</name><affiliation><inist:fA14 i1="24"><s1>University of Münster</s1><s2>48149 Münster</s2><s3>DEU</s3><sZ>48 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Fukuda, T" sort="Fukuda, T" uniqKey="Fukuda T" first="T." last="Fukuda">T. Fukuda</name><affiliation><inist:fA14 i1="25"><s1>Nagoya University</s1><s2>464-8602 Nagoya</s2><s3>JPN</s3><sZ>49 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Fukushima, C" sort="Fukushima, C" uniqKey="Fukushima C" first="C." last="Fukushima">C. Fukushima</name></author><author><name sortKey="Galkin, V I" sort="Galkin, V I" uniqKey="Galkin V" first="V. I." last="Galkin">V. I. Galkin</name><affiliation><inist:fA14 i1="02"><s1>SINP MSU-Skobeltsyn Institute of Nuclear Physics of Moscow State University</s1><s2>119992 Moscow</s2><s3>RUS</s3><sZ>2 aut.</sZ><sZ>51 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Garfagnini, A" sort="Garfagnini, A" uniqKey="Garfagnini A" first="A." last="Garfagnini">A. Garfagnini</name><affiliation><inist:fA14 i1="08"><s1>INFN Sezione di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>9 aut.</sZ><sZ>15 aut.</sZ><sZ>26 aut.</sZ><sZ>38 aut.</sZ><sZ>52 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="12"><s1>Dipartimento di Fisica dell'Università di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>15 aut.</sZ><sZ>52 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Giacomelli, G" sort="Giacomelli, G" uniqKey="Giacomelli G" first="G." last="Giacomelli">G. Giacomelli</name><affiliation><inist:fA14 i1="13"><s1>Dipartimento di Fisica dell'Università di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>24 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="14"><s1>INFN Sezione di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>32 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Giorgini, M" sort="Giorgini, M" uniqKey="Giorgini M" first="M." last="Giorgini">M. Giorgini</name><affiliation><inist:fA14 i1="13"><s1>Dipartimento di Fisica dell'Università di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>24 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="14"><s1>INFN Sezione di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>32 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Goellnitz, C" sort="Goellnitz, C" uniqKey="Goellnitz C" first="C." last="Goellnitz">C. Goellnitz</name><affiliation><inist:fA14 i1="10"><s1>Hamburg University</s1><s2>22761 Hamburg</s2><s3>DEU</s3><sZ>11 aut.</sZ><sZ>39 aut.</sZ><sZ>46 aut.</sZ><sZ>55 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Goldberg, J" sort="Goldberg, J" uniqKey="Goldberg J" first="J." last="Goldberg">J. Goldberg</name></author><author><name sortKey="Golubkov, D" sort="Golubkov, D" uniqKey="Golubkov D" first="D." last="Golubkov">D. Golubkov</name><affiliation><inist:fA14 i1="23"><s1>ITEP-Institute for Theoretical and Experimental Physics</s1><s2>117218 Moscow</s2><s3>RUS</s3><sZ>40 aut.</sZ><sZ>57 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Goncharova, L" sort="Goncharova, L" uniqKey="Goncharova L" first="L." last="Goncharova">L. Goncharova</name><affiliation><inist:fA14 i1="07"><s1>LPI-Lebedev Physical Institute of the Russian Academy of Sciences</s1><s2>117924 Moscow</s2><s3>RUS</s3><sZ>8 aut.</sZ><sZ>20 aut.</sZ><sZ>58 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Gornushkin, Y" sort="Gornushkin, Y" uniqKey="Gornushkin Y" first="Y." last="Gornushkin">Y. Gornushkin</name><affiliation><inist:fA14 i1="22"><s1>JINR-Joint Institute for Nuclear Research</s1><s2>141980 Dubna</s2><s3>RUS</s3><sZ>35 aut.</sZ><sZ>59 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Grella, G" sort="Grella, G" uniqKey="Grella G" first="G." last="Grella">G. Grella</name><affiliation><inist:fA14 i1="11"><s1>Dipartimento di Fisica dell'Università di Salerno and INFN</s1><s2>84084 Fisciano, Salerno</s2><s3>ITA</s3><sZ>13 aut.</sZ><sZ>25 aut.</sZ><sZ>60 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">The European physical journal. C, Particles and fields</title><idno type="ISSN">1434-6044</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">The European physical journal. C, Particles and fields</title><idno type="ISSN">1434-6044</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cosmic radiation</term><term>Elementary particles</term><term>Energy spectra</term><term>Kaons</term><term>Mathematical physics</term><term>Models</term><term>Muon production</term><term>Muons</term><term>Pions</term><term>Primary cosmic radiation</term><term>TeV range</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Muon</term><term>Domaine énergie TeV</term><term>Rayonnement cosmique primaire</term><term>Modèle</term><term>Production muon</term><term>Méson pi</term><term>Méson K</term><term>Kaon</term><term>Rayonnement cosmique</term><term>Spectre énergie</term><term>Physique mathématique</term><term>Particule élémentaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = N<sub>μ+</sub>/N<sub>μ-</sub> in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the R<sub>μ</sub> dependence on the primary composition. The measured R<sub>μ</sub> values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy" ε<sub>μ</sub> cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="2"><s0>1434-6044</s0></fA01><fA05><s2>67</s2></fA05><fA06><s2>1-2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Measurement of the atmospheric muon charge ratio with the OPERA detector</s1></fA08><fA11 i1="01" i2="1"><s1>AGAFONOVA (N.)</s1></fA11><fA11 i1="02" i2="1"><s1>ANOKHINA (A.)</s1></fA11><fA11 i1="03" i2="1"><s1>AOKI (S.)</s1></fA11><fA11 i1="04" i2="1"><s1>ARIGA (A.)</s1></fA11><fA11 i1="05" i2="1"><s1>ARIGA (T.)</s1></fA11><fA11 i1="06" i2="1"><s1>AUTIERO (D.)</s1></fA11><fA11 i1="07" i2="1"><s1>BADERTSCHER (A.)</s1></fA11><fA11 i1="08" i2="1"><s1>BAGULYA (A.)</s1></fA11><fA11 i1="09" i2="1"><s1>BERTOLIN (A.)</s1></fA11><fA11 i1="10" i2="1"><s1>BESNIER (M.)</s1></fA11><fA11 i1="11" i2="1"><s1>BICK (D.)</s1></fA11><fA11 i1="12" i2="1"><s1>BOYARKIN (V.)</s1></fA11><fA11 i1="13" i2="1"><s1>BOZZA (C.)</s1></fA11><fA11 i1="14" i2="1"><s1>BRUGIERE (T.)</s1></fA11><fA11 i1="15" i2="1"><s1>BRUGNERA (R.)</s1></fA11><fA11 i1="16" i2="1"><s1>BRUNETTI (G.)</s1></fA11><fA11 i1="17" i2="1"><s1>BUONTEMPO (S.)</s1></fA11><fA11 i1="18" i2="1"><s1>CAZES (A.)</s1></fA11><fA11 i1="19" i2="1"><s1>CHAUSSARD (L.)</s1></fA11><fA11 i1="20" i2="1"><s1>CHERNYAVSKY (M.)</s1></fA11><fA11 i1="21" i2="1"><s1>CHIARELLA (V.)</s1></fA11><fA11 i1="22" i2="1"><s1>CHON-SEN (N.)</s1></fA11><fA11 i1="23" i2="1"><s1>CHUKANOV (A.)</s1></fA11><fA11 i1="24" i2="1"><s1>COZZI (M.)</s1></fA11><fA11 i1="25" i2="1"><s1>D'AMATO (G.)</s1></fA11><fA11 i1="26" i2="1"><s1>DAL CORSO (F.)</s1></fA11><fA11 i1="27" i2="1"><s1>D'AMBROSIO (N.)</s1></fA11><fA11 i1="28" i2="1"><s1>DE LELLIS (G.)</s1></fA11><fA11 i1="29" i2="1"><s1>DECLAIS (Y.)</s1></fA11><fA11 i1="30" i2="1"><s1>DE SERIO (M.)</s1></fA11><fA11 i1="31" i2="1"><s1>DI CAPUA (F.)</s1></fA11><fA11 i1="32" i2="1"><s1>DI FERDINANDO (D.)</s1></fA11><fA11 i1="33" i2="1"><s1>DI GIOVANNI (A.)</s1></fA11><fA11 i1="34" i2="1"><s1>DI MARCO (N.)</s1></fA11><fA11 i1="35" i2="1"><s1>DMITRIEVSKI (S.)</s1></fA11><fA11 i1="36" i2="1"><s1>DRACOS (M.)</s1></fA11><fA11 i1="37" i2="1"><s1>DUCHESNEAU (D.)</s1></fA11><fA11 i1="38" i2="1"><s1>DUSINI (S.)</s1></fA11><fA11 i1="39" i2="1"><s1>EBERT (J.)</s1></fA11><fA11 i1="40" i2="1"><s1>EGOROV (O.)</s1></fA11><fA11 i1="41" i2="1"><s1>ENIKEEV (R.)</s1></fA11><fA11 i1="42" i2="1"><s1>EREDITATO (A.)</s1></fA11><fA11 i1="43" i2="1"><s1>ESPOSITO (L. S.)</s1></fA11><fA11 i1="44" i2="1"><s1>FAVIER (J.)</s1></fA11><fA11 i1="45" i2="1"><s1>FELICI (G.)</s1></fA11><fA11 i1="46" i2="1"><s1>FERBER (T.)</s1></fA11><fA11 i1="47" i2="1"><s1>FINI (R.)</s1></fA11><fA11 i1="48" i2="1"><s1>FREKERS (D.)</s1></fA11><fA11 i1="49" i2="1"><s1>FUKUDA (T.)</s1></fA11><fA11 i1="50" i2="1"><s1>FUKUSHIMA (C.)</s1></fA11><fA11 i1="51" i2="1"><s1>GALKIN (V. I.)</s1></fA11><fA11 i1="52" i2="1"><s1>GARFAGNINI (A.)</s1></fA11><fA11 i1="53" i2="1"><s1>GIACOMELLI (G.)</s1></fA11><fA11 i1="54" i2="1"><s1>GIORGINI (M.)</s1></fA11><fA11 i1="55" i2="1"><s1>GOELLNITZ (C.)</s1></fA11><fA11 i1="56" i2="1"><s1>GOLDBERG (J.)</s1></fA11><fA11 i1="57" i2="1"><s1>GOLUBKOV (D.)</s1></fA11><fA11 i1="58" i2="1"><s1>GONCHAROVA (L.)</s1></fA11><fA11 i1="59" i2="1"><s1>GORNUSHKIN (Y.)</s1></fA11><fA11 i1="60" i2="1"><s1>GRELLA (G.)</s1></fA11><fA14 i1="01"><s1>INR-Institute for Nuclear Research of the Russian Academy of Sciences</s1><s2>117312 Moscow</s2><s3>RUS</s3><sZ>1 aut.</sZ><sZ>12 aut.</sZ><sZ>41 aut.</sZ></fA14><fA14 i1="02"><s1>SINP MSU-Skobeltsyn Institute of Nuclear Physics of Moscow State University</s1><s2>119992 Moscow</s2><s3>RUS</s3><sZ>2 aut.</sZ><sZ>51 aut.</sZ></fA14><fA14 i1="03"><s1>Kobe University</s1><s2>657-8501 Kobe</s2><s3>JPN</s3><sZ>3 aut.</sZ></fA14><fA14 i1="04"><s1>Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), University of Bern</s1><s2>3012 Bern</s2><s3>CHE</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>42 aut.</sZ></fA14><fA14 i1="05"><s1>IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3</s1><s2>69622 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>14 aut.</sZ><sZ>18 aut.</sZ><sZ>19 aut.</sZ><sZ>29 aut.</sZ></fA14><fA14 i1="06"><s1>ETH Zurich, Institute for Particle Physics</s1><s2>8093 Zurich</s2><s3>CHE</s3><sZ>7 aut.</sZ><sZ>10 aut.</sZ></fA14><fA14 i1="07"><s1>LPI-Lebedev Physical Institute of the Russian Academy of Sciences</s1><s2>117924 Moscow</s2><s3>RUS</s3><sZ>8 aut.</sZ><sZ>20 aut.</sZ><sZ>58 aut.</sZ></fA14><fA14 i1="08"><s1>INFN Sezione di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>9 aut.</sZ><sZ>15 aut.</sZ><sZ>26 aut.</sZ><sZ>38 aut.</sZ><sZ>52 aut.</sZ></fA14><fA14 i1="09"><s1>LAPP, Université de Savoie, CNRS/IN2P3</s1><s2>74941 Annecy-le-Vieux</s2><s3>FRA</s3><sZ>10 aut.</sZ><sZ>37 aut.</sZ><sZ>44 aut.</sZ></fA14><fA14 i1="10"><s1>Hamburg University</s1><s2>22761 Hamburg</s2><s3>DEU</s3><sZ>11 aut.</sZ><sZ>39 aut.</sZ><sZ>46 aut.</sZ><sZ>55 aut.</sZ></fA14><fA14 i1="11"><s1>Dipartimento di Fisica dell'Università di Salerno and INFN</s1><s2>84084 Fisciano, Salerno</s2><s3>ITA</s3><sZ>13 aut.</sZ><sZ>25 aut.</sZ><sZ>60 aut.</sZ></fA14><fA14 i1="12"><s1>Dipartimento di Fisica dell'Università di Padova</s1><s2>35131 Padova</s2><s3>ITA</s3><sZ>15 aut.</sZ><sZ>52 aut.</sZ></fA14><fA14 i1="13"><s1>Dipartimento di Fisica dell'Università di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>24 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></fA14><fA14 i1="14"><s1>INFN Sezione di Bologna</s1><s2>40127 Bologna</s2><s3>ITA</s3><sZ>16 aut.</sZ><sZ>32 aut.</sZ><sZ>53 aut.</sZ><sZ>54 aut.</sZ></fA14><fA14 i1="15"><s1>INFN Sezione di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>17 aut.</sZ><sZ>23 aut.</sZ><sZ>28 aut.</sZ><sZ>31 aut.</sZ></fA14><fA14 i1="16"><s1>INFN-Laboratori Nazionali di Frascati dell'INFN</s1><s2>00044 Frascati (Roma)</s2><s3>ITA</s3><sZ>21 aut.</sZ><sZ>45 aut.</sZ></fA14><fA14 i1="17"><s1>IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3</s1><s2>67037 Strasbourg</s2><s3>FRA</s3><sZ>22 aut.</sZ><sZ>36 aut.</sZ></fA14><fA14 i1="18"><s1>INFN-Laboratori Nazionali del Gran Sasso</s1><s2>67010 Assergi (L'Aquila)</s2><s3>ITA</s3><sZ>27 aut.</sZ><sZ>33 aut.</sZ><sZ>43 aut.</sZ></fA14><fA14 i1="19"><s1>Dipartimento di Fisica dell'Università Federico II di Napoli</s1><s2>80125 Napoli</s2><s3>ITA</s3><sZ>28 aut.</sZ></fA14><fA14 i1="20"><s1>INFN Sezione di Bari</s1><s2>70126 Bari</s2><s3>ITA</s3><sZ>30 aut.</sZ><sZ>47 aut.</sZ></fA14><fA14 i1="21"><s1>Dipartimento di Fisica dell'Università dell'Aquila and INFN</s1><s2>67100 L'Aquila</s2><s3>ITA</s3><sZ>34 aut.</sZ></fA14><fA14 i1="22"><s1>JINR-Joint Institute for Nuclear Research</s1><s2>141980 Dubna</s2><s3>RUS</s3><sZ>35 aut.</sZ><sZ>59 aut.</sZ></fA14><fA14 i1="23"><s1>ITEP-Institute for Theoretical and Experimental Physics</s1><s2>117218 Moscow</s2><s3>RUS</s3><sZ>40 aut.</sZ><sZ>57 aut.</sZ></fA14><fA14 i1="24"><s1>University of Münster</s1><s2>48149 Münster</s2><s3>DEU</s3><sZ>48 aut.</sZ></fA14><fA14 i1="25"><s1>Nagoya University</s1><s2>464-8602 Nagoya</s2><s3>JPN</s3><sZ>49 aut.</sZ></fA14><fA20><s1>25-37</s1></fA20><fA21><s1>2010</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>27152</s2><s5>354000182158640020</s5></fA43><fA44><s0>0000</s0><s1>© 2010 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>28 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>10-0259960</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="2"><s0>The European physical journal. C, Particles and fields</s0></fA64><fA66 i1="01"><s0>DEU</s0></fA66><fC01 i1="01" l="ENG"><s0>The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = N<sub>μ+</sub>/N<sub>μ-</sub> in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the R<sub>μ</sub> dependence on the primary composition. The measured R<sub>μ</sub> values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy" ε<sub>μ</sub> cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.</s0></fC01><fC02 i1="01" i2="3"><s0>001B10</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Muon</s0><s5>26</s5></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Muons</s0><s5>26</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Domaine énergie TeV</s0><s5>27</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>TeV range</s0><s5>27</s5></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Rayonnement cosmique primaire</s0><s5>28</s5></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Primary cosmic radiation</s0><s5>28</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Modèle</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Models</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Modelo</s0><s5>29</s5></fC03><fC03 i1="05" i2="3" l="FRE"><s0>Production muon</s0><s5>30</s5></fC03><fC03 i1="05" i2="3" l="ENG"><s0>Muon production</s0><s5>30</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Méson pi</s0><s5>31</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Pions</s0><s5>31</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Mesón pi</s0><s5>31</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Méson K</s0><s5>32</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Kaons</s0><s5>32</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Mesón K</s0><s5>32</s5></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Kaon</s0><s5>33</s5></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Kaons</s0><s5>33</s5></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Rayonnement cosmique</s0><s5>34</s5></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Cosmic radiation</s0><s5>34</s5></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Spectre énergie</s0><s5>35</s5></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Energy spectra</s0><s5>35</s5></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Physique mathématique</s0><s5>36</s5></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Mathematical physics</s0><s5>36</s5></fC03><fC03 i1="12" i2="3" l="FRE"><s0>Particule élémentaire</s0><s5>37</s5></fC03><fC03 i1="12" i2="3" l="ENG"><s0>Elementary particles</s0><s5>37</s5></fC03><fN21><s1>172</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard><server><NO>PASCAL 10-0259960 INIST</NO><ET>Measurement of the atmospheric muon charge ratio with the OPERA detector</ET><AU>AGAFONOVA (N.); ANOKHINA (A.); AOKI (S.); ARIGA (A.); ARIGA (T.); AUTIERO (D.); BADERTSCHER (A.); BAGULYA (A.); BERTOLIN (A.); BESNIER (M.); BICK (D.); BOYARKIN (V.); BOZZA (C.); BRUGIERE (T.); BRUGNERA (R.); BRUNETTI (G.); BUONTEMPO (S.); CAZES (A.); CHAUSSARD (L.); CHERNYAVSKY (M.); CHIARELLA (V.); CHON-SEN (N.); CHUKANOV (A.); COZZI (M.); D'AMATO (G.); DAL CORSO (F.); D'AMBROSIO (N.); DE LELLIS (G.); DECLAIS (Y.); DE SERIO (M.); DI CAPUA (F.); DI FERDINANDO (D.); DI GIOVANNI (A.); DI MARCO (N.); DMITRIEVSKI (S.); DRACOS (M.); DUCHESNEAU (D.); DUSINI (S.); EBERT (J.); EGOROV (O.); ENIKEEV (R.); EREDITATO (A.); ESPOSITO (L. S.); FAVIER (J.); FELICI (G.); FERBER (T.); FINI (R.); FREKERS (D.); FUKUDA (T.); FUKUSHIMA (C.); GALKIN (V. I.); GARFAGNINI (A.); GIACOMELLI (G.); GIORGINI (M.); GOELLNITZ (C.); GOLDBERG (J.); GOLUBKOV (D.); GONCHAROVA (L.); GORNUSHKIN (Y.); GRELLA (G.)</AU><AF>INR-Institute for Nuclear Research of the Russian Academy of Sciences/117312 Moscow/Russie (1 aut., 12 aut., 41 aut.); SINP MSU-Skobeltsyn Institute of Nuclear Physics of Moscow State University/119992 Moscow/Russie (2 aut., 51 aut.); Kobe University/657-8501 Kobe/Japon (3 aut.); Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), University of Bern/3012 Bern/Suisse (4 aut., 5 aut., 42 aut.); IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3/69622 Villeurbanne/France (6 aut., 14 aut., 18 aut., 19 aut., 29 aut.); ETH Zurich, Institute for Particle Physics/8093 Zurich/Suisse (7 aut., 10 aut.); LPI-Lebedev Physical Institute of the Russian Academy of Sciences/117924 Moscow/Russie (8 aut., 20 aut., 58 aut.); INFN Sezione di Padova/35131 Padova/Italie (9 aut., 15 aut., 26 aut., 38 aut., 52 aut.); LAPP, Université de Savoie, CNRS/IN2P3/74941 Annecy-le-Vieux/France (10 aut., 37 aut., 44 aut.); Hamburg University/22761 Hamburg/Allemagne (11 aut., 39 aut., 46 aut., 55 aut.); Dipartimento di Fisica dell'Università di Salerno and INFN/84084 Fisciano, Salerno/Italie (13 aut., 25 aut., 60 aut.); Dipartimento di Fisica dell'Università di Padova/35131 Padova/Italie (15 aut., 52 aut.); Dipartimento di Fisica dell'Università di Bologna/40127 Bologna/Italie (16 aut., 24 aut., 53 aut., 54 aut.); INFN Sezione di Bologna/40127 Bologna/Italie (16 aut., 32 aut., 53 aut., 54 aut.); INFN Sezione di Napoli/80125 Napoli/Italie (17 aut., 23 aut., 28 aut., 31 aut.); INFN-Laboratori Nazionali di Frascati dell'INFN/00044 Frascati (Roma)/Italie (21 aut., 45 aut.); IPHC, Université de Strasbourg, CNRS/IN2P3, CNRS/IN2P3/67037 Strasbourg/France (22 aut., 36 aut.); INFN-Laboratori Nazionali del Gran Sasso/67010 Assergi (L'Aquila)/Italie (27 aut., 33 aut., 43 aut.); Dipartimento di Fisica dell'Università Federico II di Napoli/80125 Napoli/Italie (28 aut.); INFN Sezione di Bari/70126 Bari/Italie (30 aut., 47 aut.); Dipartimento di Fisica dell'Università dell'Aquila and INFN/67100 L'Aquila/Italie (34 aut.); JINR-Joint Institute for Nuclear Research/141980 Dubna/Russie (35 aut., 59 aut.); ITEP-Institute for Theoretical and Experimental Physics/117218 Moscow/Russie (40 aut., 57 aut.); University of Münster/48149 Münster/Allemagne (48 aut.); Nagoya University/464-8602 Nagoya/Japon (49 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>The European physical journal. C, Particles and fields; ISSN 1434-6044; Allemagne; Da. 2010; Vol. 67; No. 1-2; Pp. 25-37; Bibl. 28 ref.</SO><LA>Anglais</LA><EA>The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = N<sub>μ+</sub>/N<sub>μ-</sub> in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the R<sub>μ</sub> dependence on the primary composition. The measured R<sub>μ</sub> values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy" ε<sub>μ</sub> cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.</EA><CC>001B10</CC><FD>Muon; Domaine énergie TeV; Rayonnement cosmique primaire; Modèle; Production muon; Méson pi; Méson K; Kaon; Rayonnement cosmique; Spectre énergie; Physique mathématique; Particule élémentaire</FD><ED>Muons; TeV range; Primary cosmic radiation; Models; Muon production; Pions; Kaons; Kaons; Cosmic radiation; Energy spectra; Mathematical physics; Elementary particles</ED><SD>Modelo; Mesón pi; Mesón K</SD><LO>INIST-27152.354000182158640020</LO><ID>10-0259960</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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