Nucleon propagation through nuclear matter in chiral effective field theory

被引：0
|
作者：
S. Mallik
H. Mishra
机构：
[1] Saha Institute of Nuclear Physics,Theory Divison
[2] Physical Research Laboratory,undefined
来源：
The European Physical Journal C | 2007年 / 50卷
关键词：
Nuclear Matter; Fermi Momentum; Phase Shift Analysis; Partial Wave Expansion; Normal Nuclear Density;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We treat the propagation of a nucleon in nuclear matter by evaluating the ensemble average of the two-point function of the nucleon currents in the framework of chiral effective field theory. We first derive the effective parameters of the nucleon to one loop. The resulting formula for the effective mass has been known since before and gives an absurd value at normal nuclear density. We then modify it following Weinberg’s method for the two-nucleon system in the effective theory. Our results for the effective mass and the width of the nucleon are compared with those in the literature.
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页码：889 / 896
页数：7
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