Phys. Rev. C 58, 108 - 115 (1998)Structure of high spin states in 104Sn: E2 and E3 polarization of the 100Sn core
M. Górska1,2, H. Grawe1, D. Kast3, G. de Angelis4, P. G. Bizzeti5, B. A. Brown6, A. Dewald7, C. Fahlander4, A. Gadea4, A. Jungclaus3, K. P. Lieb3, K. H. Maier8, D. R. Napoli4, Q. Pan4, R. Peusquens7, M. De Poli4, M. Rejmund1,2, and H. Tiesler7 Received 18 March 1998 High spin states in 104Sn were identified in the reaction 58Ni(50Cr, 2p2n) at 200 and 205 MeV beam energies. The γ-ray energies, intensities, multipolarities, and lifetimes of high spin states were measured with the GASP spectrometer array in combination with a plunger apparatus by means of the recoil distance Doppler shift method. The deduced level scheme and transition probabilities are compared to the results of large-scale shell model calculations using three independent two-body interactions. The agreement of the level energies is satisfactory, except for a cascade of dipole transitions at high spins. The general good agreement found for E2 transition strengths implies a large effective neutron polarization charge. The shell-model calculations do not account for the measured enhanced E3 transitions for which a core excited octupole phonon admixture is indicated. ©1998 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevC.58.108 [ Abstract | Previous article | Next article | Issue 1 ] |
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