| Thème(s) : |
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Physique/Physique Nucléaire Expérimentale
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| Titre : |
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In-beam spectroscopic studies of $^{44}$S nucleus |
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| Auteur : |
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L. Caceres1, D. Sohler, S. Grévy1, O. Sorlin1, Zs. Dombradi, B. Bastin1, 2, N.L. Achouri2, J.C. Angélique2, F. Azaiez3, D. Baiborodin, R. Borcea, C. Bourgeois3, A. Buta, A. Bürger, R. Chapman, J. C. Dalouzy1, Z. Dlouhy, A. Drouard4, Z. Elekes, S. Franchoo3, L. Gaudefroy5, S. Iacob, B. Laurent5, M. Lazar, X. Liang, E. Liénard2, J. Mrazek, L. Nalpas4, F. Negoita, F. Nowacki6, N.A. Orr2, Y. Penionzhkevich, Zs. Podolyak, F. Pougheon3, A. Poves, P. Roussel-Chomaz1, M. G. Saint-Laurent1, M. Stanoiu1, 3, I. Stefan1, 3 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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structure nucléaire |
| Résumé : |
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The structure of the $^{44}$S nucleus has been studied at GANIL through the one proton knock-out reaction from a $^{45}$Cl secondary beam at 42~A$\cdot$MeV. The $\gamma$ rays following the de-excitation of $^{44}$S were detected in flight using the 70 BaF${_2}$ detectors of the Ch\^{a}teau de Cristal array. An exhaustive $\gamma\gamma$-coincidence analysis allowed an unambiguous construction of the level scheme up to an excitation energy of 3301~keV. The existence of the spherical 2$^+_2$ state is confirmed and three new $\gamma$-ray transitions connecting the prolate deformed 2$^+_1$ level were observed. Comparison of the experimental results to shell model calculations further supports a prolate and spherical shape coexistence with a large mixing of states built on the ground state band in $^{44}$S. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2012 |
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| Nom du périodique : |
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| Physical Review C (Phys. Rev. C) |
| Publisher |
American Physical Society |
| ISSN |
0556-2813 (eISSN : 1089-490X) |
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| Volume : |
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85 |
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| Page/Article : |
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024311 |
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| Identifiant local : |
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GANIL P 2012-04, GANIL 2012-020 A |
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| Classification PACS : |
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21.60.Cs, 23.20.Lv, 27.40.+z |
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| Commentaire : |
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6 pages, 5 figures, accepted for publication in Physical Review C, expérience GANIL/SISSI |
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