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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
ISSN0375-9474
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
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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1978-2010年知识产出
通讯作者Liu, YX , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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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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