Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator

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	Chang, L; Liu, YX; Guo, H; Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
	Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator
发表期刊	NUCLEAR PHYSICS A
关键词	Meson Coupling Model Non-topological Solitons Strange Hadronic Matter Bag Constant Quark Condensate Confining Model Field-theory Deconfinement Parameters Pi
摘要	Making use of the global color symmetry model (GCM) at finite chemical potential and with a sophisticated effective gluon propagator, the density dependence of the bag constant, the total energy and the radius of a nucleon in nuclear matter is investigated. A maximal nuclear matter density for the existence of the bag with three quarks confined within is given as about 8 times the normal nuclear matter density. The calculated results indicate that, before the maximal density is reached, the bag constant and the total energy of a nucleon decrease, and the radius of a nucleon increases, with the increasing of the nuclear matter density. As the maximal nuclear matter density is reached, the mass and the bag constant of the nucleon vanish and the radius becomes infinite suddenly. It manifests that a phase transition from nucleons to quarks takes place. Meanwhile, shortening the interaction range among quarks can induce the phase transition to happen easier. (c) 2005 Elsevier B.V. All rights reserved.
	2005
ISSN	0375-9474
卷号	750 期号:40943 页码:324-336
学科领域	Physics
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/13843
专题	理论物理所科研产出_SCI论文
通讯作者	Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Chang, L,Liu, YX,Guo, H,et al. Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator[J]. NUCLEAR PHYSICS A,2005,750(40943):324-336.
APA	Chang, L,Liu, YX,Guo, H,&Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2005).Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator.NUCLEAR PHYSICS A,750(40943),324-336.
MLA	Chang, L,et al."Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator".NUCLEAR PHYSICS A 750.40943(2005):324-336.

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