HIGH-SPIN STRUCTURE OF N = 51 RH-96 AND PD-97 - A SHELL-MODEL STUDY

被引:25
作者
PIEL, WF [1 ]
FOSSAN, DB [1 ]
MA, R [1 ]
PAUL, ES [1 ]
XU, N [1 ]
MCGRORY, JB [1 ]
机构
[1] OAK RIDGE NATL LAB, DEPT PHYS, OAK RIDGE, TN 37831 USA
关键词
D O I
10.1103/PhysRevC.41.1223
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
High-spin states of isotonic Rh96 and Pd97 were studied by means of the Zn64(40Ca, 3pn)96Rh and Zn64(40Ca, 2pn)97Pd reactions, respectively, with Elab=167 MeV. Levels up to 5.5 MeV with J=15+ in Rh96 were populated while levels in Pd97 up to 7.5 MeV were found. The yrast (21/2+ level of Pd97 was found to decay to a (19/2+ level, in contrast to the behavior of the lighter odd-A isotones. An attempt to measure lifetimes using a neutron- coincidence technique revealed no new isomers in either nuclide with t1/25 ns. The discovery of two low-lying transitions of 125 keV in Rh96 requires a slight revision of a recently reported value of its atomic mass as well as that of isobaric Pd96. The high-spin structure and the N=51 systematics, particularly the location of the g7/2 strength, are compared with the results of shell-model calculations. © 1990 The American Physical Society.
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页码:1223 / 1233
页数:11
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