Yrast excitations in N=81 nuclei Sb-132 and Te-133 from Cm-248 - art. no. 054312

Bhattacharyya, P Daly, PJ Zhang, CT Grabowski, ZW Saha, SK Fornal, B Broda, R Urban, W Ahmad, I Seweryniak, D Wiedenhover, I Carpenter, MP Janssens, RVF Khoo, TL Lauritsen, T Lister, CJ Reiter, P Blomqvist, J

P. Bhattacharyya et al., Yrast excitations in N=81 nuclei Sb-132 and Te-133 from Cm-248 - art. no. 054312, PHYS REV C, 6405(5), 2001, pp. 4312

17

INGLESE

Article

Physics

PHYSICAL REVIEW C

0556-2813 → ACNP

6405

5

2001

ISI

0556-2813(200111)6405:5<4312:YEINNS>2.0.ZU;2-M

Gamma rays in the Sb-132 and Te-133 N = 81 isotones near doubly magic Sn-13 2 have been studied at Gammasphere using a Cm-248 fission source. Previousl y unknown yrast cascades in the two nuclei were identified in cross coincid ence with known gamma rays from complementary Rh and Ru fission fragments. The Sb-132 levels are explained as proton-neutron hole states as well as co re excited states of 2p-2h character, while the interpretation of the Te-13 3 level scheme is mainly based on results of shell model calculations using empirical proton-proton interaction energies from Te-134 together with est imated proton-neutron hole interactions.