PT-194,P-198(P-],P') REACTION AND THE INTERACTING BOSON MODEL

被引：23
|
作者：
SETHI, A
BAKER, FT
EMERY, GT
JONES, WP
GRIMM, MA
机构：
[1] UNIV GEORGIA,DEPT PHYS & ASTRON,ATHENS,GA 30602
[2] INDIANA UNIV,CYCLOTRON FACIL,BLOOMINGTON,IN 47401
[3] UNIV LOUISVILLE,LOUISVILLE,KY 40208
来源：
NUCLEAR PHYSICS A | 1990年 / 518卷 / 03期
关键词：
NUCLEAR REACTIONS;
D O I：
10.1016/0375-9474(90)90145-C
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：
Angular distributions of dσ/dΩ and Ay were measured for low-lying collective states, Jπ = 01+, 2+1, 2+2, 4+1, 4+2, 4+3 in 194,198pt using 135 MeV polarized protons. Coupled-channels analysis of the data indicates large E4 moments for the 4i (i = 1, 2, 3) states in both the isotopes. These data have been analyzed in the framework of the interacting boson model (IBM). Although the standard IBM-1 scheme with only s- and d-bosons can describe the E2 properties of both isotopes quite well, a more generalized version which also includes a g-boson is needed to correctly reproduce simultaneously both the E2 and E4 data. Another model using the "projected IBM-2" parameters gives similar results. © 1990.
引用
收藏
页码：536 / 560
页数：25
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