Effects of the quasiparticle-phonon interaction in magic and non-magic nuclei

被引：0
|
作者：
Kamerdzhiev, S [1 ]
Speth, J
Tertychny, G
机构：
[1] Inst Phys & Power Engn, Obninsk, Russia
[2] Forschungszentrum Julich, Inst Kernphys, D-5170 Julich, Germany
来源：
ACTA PHYSICA POLONICA B | 1998年 / 29卷 / 09期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The results of the recent (40)Ca and (58)Ni(alpha, alpha') experiments at E(alpha) = 240 MeV are analyzed within a consistent microscopic model which takes into account both the effective particle-hole interaction and the quasiparticle-phonon one. A good agreement with the experiment for the isoscalar EO EWSR was obtained for (40)Ca. But due to using microscopic transition densities instead of phenomenological ones for (58)Ni we obtained 71% of the EWSR instead of the noticeably less experimental value. Therefore, a part of the EO strength may be hidden in the experimental background in the (58)Ni experiments. An equation for the nuclear gap in non-magic nuclei which takes into account both a particle-particle interaction and the quasiparticle-phonon one has been obtained. The first results of its solution have been represented.
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页码：2231 / 2238
页数：8
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