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题名: Density dependence of nucleon radius and mass in the global color symmetry model of QCD with a sophisticated effective gluon propagator
作者: Chang, L ;  Liu, YX ;  Guo, H
刊名: NUCLEAR PHYSICS A
出版日期: 2005
卷号: 750, 期号:40943, 页码:324-336
关键词: MESON COUPLING MODEL ;  NON-TOPOLOGICAL SOLITONS ;  STRANGE HADRONIC MATTER ;  BAG CONSTANT ;  QUARK CONDENSATE ;  CONFINING MODEL ;  FIELD-THEORY ;  DECONFINEMENT ;  PARAMETERS ;  PI
学科分类: Physics
通讯作者: Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000227817100009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13843
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chang, L,Liu, YX,Guo, H. 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.
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