Particle-core coupling in S37

R. Chapman; Z. M. Wang; M. Bouhelal; F. Haas; X. Liang; F. Azaiez; B. R. Behera; M. Burns; E. Caurier; L. Corradi; D. Curien; A. N. Deacon; Zs. Dombrádi; E. Farnea; E. Fioretto; A. Gadea; A. Hodsdon; F. Ibrahim; A. Jungclaus; K. Keyes; V. Kumar; S. Lunardi; N. Mărginean; G. Montagnoli; D. R. Napoli; F. Nowacki; J. Ollier; D. O'Donnell; A. Papenberg; G. Pollarolo; M.-D. Salsac; F. Scarlassara; G. Simpson; J. F. Smith; K. M. Spohr; M. Stanoiu; A. M. Stefanini; S. Szilner; M. Trotta; D. Verney

doi:10.1103/PhysRevC.93.044318

Particle-core coupling in S37

R. Chapman Z. M. Wang M. Bouhelal F. Haas ¹ X. Liang F. Azaiez ² B. R. Behera M. Burns E. Caurier ¹ L. Corradi D. Curien ¹ A. N. Deacon Zs. Dombrádi E. Farnea E. Fioretto A. Gadea A. Hodsdon F. Ibrahim A. Jungclaus K. Keyes V. Kumar S. Lunardi N. Mărginean G. Montagnoli D. R. Napoli F. Nowacki ¹ J. Ollier D. O'Donnell A. Papenberg G. Pollarolo M.-D. Salsac ³ F. Scarlassara G. Simpson J. F. Smith K. M. Spohr M. Stanoiu A. M. Stefanini S. Szilner M. Trotta D. Verney ²

1 IPHC - Institut Pluridisciplinaire Hubert Curien

2 IPNO - Institut de Physique Nucléaire d'Orsay

3 DPHN - Département de Physique Nucléaire (ex SPhN)

Abstract : Excited states of the neutron-rich N=21 S37 nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of S36 ions with a thin Pb208 target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. The level scheme of S37 was established to an excitation energy of 4196 keV and a number of new transitions were observed, in particular that corresponding to the decay of the proposed Jπ=(11/2−) level at an excitation energy of 2776 keV. The structure of the state is discussed within the context of state-of-the-art shell-model calculations using the SDPF-U effective interaction; the main component of the wave function corresponds to the coupling of the odd 1f7/2 neutron to the first 2+ state of the S36 core. The electromagnetic decay properties of the state are discussed within the context of a particle-core coupling model and the shell model. The other members of the multiplet of states are also discussed.

Type de document :

Article dans une revue

Physical Review C, American Physical Society, 2016, 93 (4), pp.044318. 〈10.1103/PhysRevC.93.044318〉

Domaine :

Physique [physics] / Physique Nucléaire Expérimentale [nucl-ex]

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