Direct and multiple excitations in 96Zr from inelastic-scattering experiments
Identifieur interne : 003000 ( Main/Exploration ); précédent : 002F99; suivant : 003001Direct and multiple excitations in 96Zr from inelastic-scattering experiments
Auteurs : D. Hofer [Allemagne] ; M. Bisenberger [Allemagne] ; R. Hertenberger [Allemagne] ; H. Kader [Allemagne] ; H. J. Maier [Allemagne] ; E. Müller-Zanotti [Allemagne] ; P. Schiemenz [Allemagne] ; G. Graw [Allemagne] ; P. Maier-Komor [Allemagne] ; G. Molnár [Allemagne] ; W. Unkelbach [Allemagne] ; J. Hebenstreit [Allemagne] ; H. Ohm [Allemagne] ; D. Paul [Allemagne] ; P. Von Rossen [Allemagne] ; M. Fujiwara [Japon]Source :
- Nuclear Physics, Section A [ 0375-9474 ] ; 1992.
Abstract
The excitation of doubly closed subshell 96Zr is studied in polarized d, d') as well as in unpolarized (p, p') and (d, d') reaction experiments at bombarding energies near 20 and 60 MeV. All excited states known from previous γ-spectroscopic studies have been resolved up to 4.1 MeV excitation energy. The data confirm that the low-lying spectrum is dominated by two-quasiparticle excitations, with the excitation strength being concentrated on the lowest states for each spin. The high collectivity of the 3−1 state is most remarkable and in line with recent level-lifetime results. The excitation energies and extracted isoscalar strengths compare well with QRPA results. Coupled- channel calculations, used to distinguish between one-step (two-quasiparticle) and two-step (four- quasiparticle) excitations, give only partial evidence concerning the existence of two-phonon octupole and quadrupole-octupole vibrational states.
Url:
DOI: 10.1016/0375-9474(93)90478-G
Affiliations:
- Allemagne, Japon
- Bavière, District de Cologne, District de Haute-Bavière, Rhénanie-du-Nord-Westphalie
- Juliers, Munich
- Université Louis-et-Maximilien de Munich, Université technique de Munich
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Molnár</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Kernphysik, KFA Jülich, D-5170 Jülich</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Juliers</settlement></placeName></affiliation></author><author><name sortKey="Unkelbach, W" sort="Unkelbach, W" uniqKey="Unkelbach W" first="W." last="Unkelbach">W. Unkelbach</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Kernphysik, KFA Jülich, D-5170 Jülich</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Juliers</settlement></placeName></affiliation></author><author><name sortKey="Hebenstreit, J" sort="Hebenstreit, J" uniqKey="Hebenstreit J" first="J." last="Hebenstreit">J. Hebenstreit</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Kernphysik, KFA Jülich, D-5170 Jülich</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Juliers</settlement></placeName></affiliation></author><author><name sortKey="Ohm, H" sort="Ohm, H" uniqKey="Ohm H" first="H." last="Ohm">H. Ohm</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Kernphysik, KFA Jülich, D-5170 Jülich</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Juliers</settlement></placeName></affiliation></author><author><name sortKey="Paul, D" sort="Paul, D" uniqKey="Paul D" first="D." last="Paul">D. Paul</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Kernphysik, KFA Jülich, D-5170 Jülich</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Juliers</settlement></placeName></affiliation></author><author><name sortKey="Von Rossen, P" sort="Von Rossen, P" uniqKey="Von Rossen P" first="P." last="Von Rossen">P. 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Fujiwara</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Research Center for Nuclear Physics, Osaka University, Osaka 576</wicri:regionArea><wicri:noRegion>Osaka 576</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Nuclear Physics, Section A</title><title level="j" type="abbrev">NUPHA</title><idno type="ISSN">0375-9474</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1992">1992</date><biblScope unit="volume">551</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="173">173</biblScope><biblScope unit="page" to="209">209</biblScope></imprint><idno type="ISSN">0375-9474</idno></series><idno type="istex">B81C2C6557801CAFCA6061B0EC369655771131AE</idno><idno type="DOI">10.1016/0375-9474(93)90478-G</idno><idno type="PII">0375-9474(93)90478-G</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0375-9474</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The excitation of doubly closed subshell 96Zr is studied in polarized d, d') as well as in unpolarized (p, p') and (d, d') reaction experiments at bombarding energies near 20 and 60 MeV. All excited states known from previous γ-spectroscopic studies have been resolved up to 4.1 MeV excitation energy. The data confirm that the low-lying spectrum is dominated by two-quasiparticle excitations, with the excitation strength being concentrated on the lowest states for each spin. The high collectivity of the 3−1 state is most remarkable and in line with recent level-lifetime results. The excitation energies and extracted isoscalar strengths compare well with QRPA results. Coupled- channel calculations, used to distinguish between one-step (two-quasiparticle) and two-step (four- quasiparticle) excitations, give only partial evidence concerning the existence of two-phonon octupole and quadrupole-octupole vibrational states.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Japon</li></country><region><li>Bavière</li><li>District de Cologne</li><li>District de Haute-Bavière</li><li>Rhénanie-du-Nord-Westphalie</li></region><settlement><li>Juliers</li><li>Munich</li></settlement><orgName><li>Université Louis-et-Maximilien de Munich</li><li>Université technique de Munich</li></orgName></list><tree><country name="Allemagne"><region name="Bavière"><name sortKey="Hofer, D" sort="Hofer, D" uniqKey="Hofer D" first="D." last="Hofer">D. Hofer</name></region><name sortKey="Bisenberger, M" sort="Bisenberger, M" uniqKey="Bisenberger M" first="M." last="Bisenberger">M. Bisenberger</name><name sortKey="Graw, G" sort="Graw, G" uniqKey="Graw G" first="G." last="Graw">G. Graw</name><name sortKey="Hebenstreit, J" sort="Hebenstreit, J" uniqKey="Hebenstreit J" first="J." last="Hebenstreit">J. Hebenstreit</name><name sortKey="Hertenberger, R" sort="Hertenberger, R" uniqKey="Hertenberger R" first="R." last="Hertenberger">R. Hertenberger</name><name sortKey="Kader, H" sort="Kader, H" uniqKey="Kader H" first="H." last="Kader">H. Kader</name><name sortKey="Maier Komor, P" sort="Maier Komor, P" uniqKey="Maier Komor P" first="P." last="Maier-Komor">P. Maier-Komor</name><name sortKey="Maier, H J" sort="Maier, H J" uniqKey="Maier H" first="H. J." last="Maier">H. J. Maier</name><name sortKey="Molnar, G" sort="Molnar, G" uniqKey="Molnar G" first="G." last="Molnár">G. Molnár</name><name sortKey="Muller Zanotti, E" sort="Muller Zanotti, E" uniqKey="Muller Zanotti E" first="E." last="Müller-Zanotti">E. Müller-Zanotti</name><name sortKey="Ohm, H" sort="Ohm, H" uniqKey="Ohm H" first="H." last="Ohm">H. Ohm</name><name sortKey="Paul, D" sort="Paul, D" uniqKey="Paul D" first="D." last="Paul">D. Paul</name><name sortKey="Schiemenz, P" sort="Schiemenz, P" uniqKey="Schiemenz P" first="P." last="Schiemenz">P. Schiemenz</name><name sortKey="Unkelbach, W" sort="Unkelbach, W" uniqKey="Unkelbach W" first="W." last="Unkelbach">W. Unkelbach</name><name sortKey="Von Rossen, P" sort="Von Rossen, P" uniqKey="Von Rossen P" first="P." last="Von Rossen">P. Von Rossen</name></country><country name="Japon"><noRegion><name sortKey="Fujiwara, M" sort="Fujiwara, M" uniqKey="Fujiwara M" first="M." last="Fujiwara">M. Fujiwara</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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