NONPERTURBATIVE TREATMENT OF THE N-BODY SYSTEM WITH DYNAMICAL MESONS

被引：4
作者：
ALEXANDROU, C
DIAKONOS, FK
机构：
[1] Department of Natural Sciences, University of Cyprus, Nicosia
来源：
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1995年 / 353卷 / 02期
关键词：
D O I：
10.1007/BF01295893
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 variational approach, used by Feynman in the study of the polaron problem, is generalized to treat a system of N non-relativistic particles interacting with scalar and vector mesons. After integrating out the meson fields in the path integral formulation we perform a variational calculation for the effective N-body two-time action to obtain the energy and the mass of the system. The interplay of self energies and exchange terms in attaining binding and saturation is examined. We estimate the size of the particles in the medium and give the mean number of mesons as a function of N.
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页码：149 / 165
页数：17
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