The role of the form factor and short-range correlation in the relativistic Hartree-Fock model for nuclear matter

被引：12
|
作者：
Hu, J. [1 ]
Toki, H. [1 ]
Wen, W. [2 ]
Shen, H. [2 ]
机构：
[1] Osaka Univ, RCNP, Osaka 5670047, Japan
[2] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL A | 2010年 / 43卷 / 03期
关键词：
MEAN-FIELD-THEORY; CORRELATION OPERATOR METHOD; BARYON-BARYON INTERACTION; GROUND-STATE PROPERTIES; QUARK-MODEL; FINITE NUCLEI; APPROXIMATION; DENSITY; FORCES; PART;
D O I：
10.1140/epja/i2010-10917-y
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 role of the form factor and short-range correlation in nuclear matter is studied within the relativistic Hartree-Fock approximation. We take, first, the mean-field approximation for meson fields and obtain the fluctuation terms of mesons to be used for the Fock energies. We introduce form factors in the meson-nucleon coupling vertices to take into account the finite-size effect of the nucleon. We use further the unitary correlation operator method for the treatment of the short-range correlation. The form factors of the size (Lambda similar to 1.0-2.0 GeV) of the nucleon-nucleon interaction cut down largely the contribution of the rho-meson in the Fock term. The short-range correlation effect is not large but has a significant effect on the pion and rho-meson energies in the relativistic Hartree-Fock approximation for nuclear matter.
引用
收藏
页码：323 / 334
页数：12
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