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Density dependence of nucleon bag constant, radius and mass in an effective field theory model of QCD
Liu, YX; Gao, DF; Guo, H; Liu, YX , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
2001
发表期刊NUCLEAR PHYSICS A
ISSN0375-9474
卷号695期号:1页码:353-364
摘要With the global color symmetry model (GCM) being extended to finite chemical potential, the density dependence of the bag constant, the total energy and the radius of a nucleon, as well as the quark condensate in nuclear matter are investigated. A maximal nuclear matter density for the existence of the bag with three quarks confined within is obtained. The calculated results indicate that, before the maximal density is reached, the bag constant, the total energy of a nucleon and the quark condensate decrease gradually, and the radius of a nucleon increases, with the increasing of the nuclear matter density. Nevertheless no sudden change emerges. As the maximal nuclear matter density is reached, a phase transition from nucleons to quarks takes place and the chiral symmetry is restored. (C) 2001 Elsevier Science B.V. All rights reserved.
部门归属Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Peking Univ, Minist Educ China, 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; CCAST, World Lab, Beijing 100080, Peoples R China
关键词Meson Coupling Model Non-topological Solitons Strange Hadronic Matter Color Symmetry Model Finite-temperature Quark Condensate Confining Model Deconfinement Parameters
学科领域Physics
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收录类别SCI
WOS记录号WOS:000172001000016
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被引频次:43[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/311006/13627
专题理论物理所1978-2010年知识产出
通讯作者Liu, YX , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
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Liu, YX,Gao, DF,Guo, H,et al. Density dependence of nucleon bag constant, radius and mass in an effective field theory model of QCD[J]. NUCLEAR PHYSICS A,2001,695(1):353-364.
APA Liu, YX,Gao, DF,Guo, H,&Liu, YX , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(2001).Density dependence of nucleon bag constant, radius and mass in an effective field theory model of QCD.NUCLEAR PHYSICS A,695(1),353-364.
MLA Liu, YX,et al."Density dependence of nucleon bag constant, radius and mass in an effective field theory model of QCD".NUCLEAR PHYSICS A 695.1(2001):353-364.
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