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Physical Review C 86 (2011) 061304
Collectivity in 41S
Z.M. Wang, R. Chapman, F. Haas1, X. Liang, F. Azaiez2, B. R. Behera, M. Burns, L. Corradi, D. Curien1, A. N. Deacon, Zs. Dombrádi, E. Farnea, E. Fioretto, A. Gadea, A. Hodsdon, F. Ibrahim2, A. Jungclaus, K. Keyes, V. Kumar, A. Latina, N. Mărginean, G. Montagnoli, D. R. Napoli, J. Ollier, D. O'Donnell, A. Papenberg, G. Pollarolo, M.-D. Salsac3, F. Scarlassara, J. F. Smith, K. M. Spohr, M. Stanoiu, A. M. Stefanini, S. Szilner, M. Trotta, D. Verney2

Yrast states in the neutron-rich 41S nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of 36S ions with a thin 208Pb target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. γ-ray transitions of energy 449 and 638 keV were observed. Results from published intermediate-energy Coulomb excitation measurements in combination with those from the present work have led to the construction of a new 41S level scheme. Proposed Jπ values are based on experimental observation and on model-dependent arguments. The level scheme and published electromagnetic transition probabilities are discussed within the context of state-of-art shell-model calculations using the SDPF-U effective interaction. In contrast with the excellent agreement observed in earlier published work, here there are significant discrepancies between experiment and the results of shell-model calculations.
1 :  DRS-IPHC - Département Recherches Subatomiques
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
3 :  SPhN - Service de Physique Nucléaire
Physique/Physique Nucléaire Expérimentale