SHELL-MODEL HIGH-SPIN YRAST STATES OF FISSION-PRODUCT NUCLEI ABOVE DOUBLY MAGIC SN-132

Authors
ZHANG CT BHATTACHARYYA P DALY PJ BRODA R GRABOWSKI ZW NISIUS D AHMAD I ISHII T CARPENTER MP MORSS LR PHILLIPS WR DURELL JL LEDDY MJ SMITH AG URBAN W VARLEY BJ SCHULZ N LUBKIEWICZ E BENTALEB M BLOMQVIST J
Citation
Ct. Zhang et al., SHELL-MODEL HIGH-SPIN YRAST STATES OF FISSION-PRODUCT NUCLEI ABOVE DOUBLY MAGIC SN-132, ACT PHY P B, 28(1-2), 1997, pp. 233-242
Citations number
15
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
28
Issue
1-2
Year of publication
1997
Pages
233 - 242
Database
ISI
SICI code
0587-4254(1997)28:1-2<233:SHYSOF>2.0.ZU;2-6
Abstract
Prompt gamma-ray cascades in neutron-rich nuclei around doubly-magic S n-132 have been studied at Eurogam 2 array using a Cm-248 fission sour ce. Yrast states to above 5.5 MeV in the two- and three-proton N = 82 isotones Te-134 and I-135 are reported. They are interpreted in terms of valence proton and particle-hole core excitations with the help of shell model calculations employing empirical nucleon-nucleon interacti ons from both Sn-132 and Pb-208 regions. A serious inconsistency in th e accepted masses of N = 82 isotones near Sn-132 is discovered but not resolved.