Field-theoretical and phenomenological description of absorption of particles in nuclei

被引：5
|
作者：
Nazaruk, V. I. [1 ]
机构：
[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
来源：
MODERN PHYSICS LETTERS A | 2006年 / 21卷 / 29期
关键词：
diagram technique; unitarity; self-energy; absorption; decay;
D O I：
10.1142/S0217732306021554
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The complicated processes in medium (decays, reactions and n (n) over bar transitions) involving final state absorption are considered. The calculations in the framework of field-theoretical and phenomenological approaches are compared. The reasons for disagreement are studied. The field-theoretical approach can tend to increase the total process probability as well as probability of channel corresponding to absorption, in comparison with phenomenological model.
引用
收藏
页码：2189 / 2195
页数：7
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