Isospin-spin excitations in the A=58 mass region:: The 58Ni(3He,t)58Cu reaction

被引：5
|
作者：
Bes, D. R. [1 ]
Civitarese, O.
机构：
[1] CNEA, CAC, Lab Tandar, RA-1650 Partido De Gral, San Martiin, Argentina
来源：
PHYSICAL REVIEW C | 2008年 / 78卷 / 01期
关键词：
D O I：
10.1103/PhysRevC.78.014317
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：
The experimental information on isospin-spin excitations around Ni-58 is analyzed by using isoscalar and isovector pairing vibrations, Gamow-Teller (GT) modes, and their couplings. It is found that the proposed coupling scheme accounts for a sizable amount of the strength associated with isospin-spin excitations, which include transitions to both one- and two-phonon states. The calculations are performed within the framework of perturbation theory, accounting for the renormalization of the charge by the collective GT excitations.
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页数：12
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