2-NUCLEON CORRELATIONS AND THE NUCLEON SPECTRAL-FUNCTION IN NUCLEAR-MATTER AT FINITE-TEMPERATURE - LOW-DENSITY REGION

被引：11

作者：

ALM, T

ROPKE, G

SCHNELL, A

STEIN, H

机构：

[1] Arbeitsgruppe der Max-Planck-Gesellschaft Theoretische Vielteilchenphysik an der Universitat Rostock, 18051 Rostock

来源：

PHYSICS LETTERS B | 1995年 / 346卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)01698-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The nucleon spectral function is calculated in low-density nuclear matter at finite temperature. Using Matsubara Green's functions the nucleon selfenergy is evaluated in the ladder approximation for the thermodynamic two-particle T-matrix. In addition to the contribution from the continuum part of the T-matrix special attention is paid to its pole contribution reflecting the two-particle bound state (deuteron) in the medium. The consequences of the formation of two-particle bound states for the selfenergy and the one-particle spectral function are shown.

引用

页码：233 / 239

页数：7

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