The linear sigma model at a finite isospin chemical potential
Mao, H; Petropoulos, N; Shu, S; Zhao, WQ; Zhao WQ(赵维勤)
刊名JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
2006
卷号32期号:11页码:2187-2198
学科分类Physics
DOI10.1088/0954-3899/32/11/012
通讯作者CCAST, World Lab, Beijing 100080, Peoples R China ; Technol Educ Univ Lamia, Dept Elect, Lamia 35100, Greece ; Hubei Univ, Fac Phys & Elect Technol, Wuhan 430062, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要The effect of a finite isospin chemical potential on the effective masses of mesons at finite temperature is investigated in the framework of the O( 4) linear sigma model with explicit chiral symmetry breaking. We present a mechanism to include the isospin chemical potential in the model. By using the Cornwall-Jackiw-Tomboulis method of composite operators, we obtain a set of gap equations for the effective masses of the mesons and get the numerical results in the Hartree approximation. We find that the introduction of the chemical potential only affects the mass of the charged pions and sigma, while there is almost no effect on the mass of neutral pions.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000241519500017
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被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239678
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
Mao, H,Petropoulos, N,Shu, S,et al. The linear sigma model at a finite isospin chemical potential[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2006,32(11):2187-2198.
APA Mao, H,Petropoulos, N,Shu, S,Zhao, WQ,&赵维勤.(2006).The linear sigma model at a finite isospin chemical potential.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,32(11),2187-2198.
MLA Mao, H,et al."The linear sigma model at a finite isospin chemical potential".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 32.11(2006):2187-2198.
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