Off-shell behavior of nucleon self-energy in asymmetric nuclear matter

被引：14

作者：

van Dalen, E. N. E. ^{[1
]}

Muether, H. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW C | 2010年 / 82卷 / 01期

关键词：

HARTREE-FOCK CALCULATIONS; OCCUPATION PROBABILITIES; BRUECKNER APPROACH; DIRAC STRUCTURE; MODEL; APPROXIMATION; EQUATION; STATE; FIELD;

D O I：

10.1103/PhysRevC.82.014319

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 off-shell behavior of the nucleon self-energy in isospin-asymmetric nuclear matter is investigated within the framework of the relativistic Dirac-Brueckner-Hartree-Fock approach based on projection techniques. The dependence of the Dirac components of the self-energy on momentum as well as energy is evaluated for symmetric as well as asymmetric nuclear matter. Special attention is paid to the various contributions to the momentum dependence of the real and imaginary part of the optical potential. The consequences to the different definitions of the effective nucleon mass and particle spectral functions are discussed.

引用

页数：9

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