Three nucleon forces in nuclear matter in QCD sum

被引：4

作者：

Drukarev, E. G. ^{[1
]}

Ryskin, M. G. ^{[1
]}

Sadovnikova, V. A. ^{[1
]}

机构：

[1] BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Kurchatov Inst, St Petersburg 188300, Russia

来源：

NUCLEAR PHYSICS A | 2017年 / 959卷

关键词：

Finite density QCD sum rules; Nuclear matter; Three body forces; Single-particle characteristics of the in-medium nucleon; Self energies; REPULSIVE CORE; QUARK; ENERGY;

D O I：

10.1016/j.nuclphysa.2016.12.012

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：

We calculate the single-particle nucleon characteristics in symmetric nuclear matter with inclusion of the 3N interactions. The contributions of the 3N forces to nucleon self energies are expressed in terms of the nonlocal scalar condensate (d = 3) and of the configuration of the four-quark condensates (d = 6) in which two diquark operators act on two different nucleons of the matter. The most important part of the contribution of the four-quark condensate is calculated in a model-independent way. We employed a relativistic quark model of nucleon for calculation of the other parts. The density dependence of the vector and scalar nucleon self energies and of the single-particle potential energy are obtained. Estimations on contributions of the 4N forces to the nucleon self energies are made. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：129 / 146

页数：18

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