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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	Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator
	Chang, L; Liu, YX; Guo, H; Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
	2005
发表期刊	NUCLEAR PHYSICS A
ISSN	0375-9474
卷号	750 期号:40943 页码:324-336
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.
部门归属	CCAST, World Lab, Beijing 100080, Peoples R China; Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China; Peking Univ, Minist Educ, Key Lab Heavy Ion Phys, Beijing 100871, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
关键词	Meson Coupling Model Non-topological Solitons Strange Hadronic Matter Bag Constant Quark Condensate Confining Model Field-theory Deconfinement Parameters Pi
学科领域	Physics
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收录类别	SCI
WOS记录号	WOS:000227817100009
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
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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