Medium Effects on Dynamical Properties of the Fermion and Mesons in the Gauged Nambu- Jona-Lasinio Model
JIANG Wei-zhou1 , QIU Xi-jun1,2
1 Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800
2 Department of Physics, Shanghai University, Shanghai 201800
Medium Effects on Dynamical Properties of the Fermion and Mesons in the Gauged Nambu- Jona-Lasinio Model
JIANG Wei-zhou1 ;QIU Xi-jun1,2
1 Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800
2 Department of Physics, Shanghai University, Shanghai 201800
关键词 ：
21.65.+f ,
14.40.-n ,
11.30.Rd
Abstract ： The gap equation for the fermion in the gauged Nambu-Jona-Lasinio (NJL) model is derived in nuclear medium with flavors Nf = 2. Based on the gap equation, the fermion mass in nuclear medium is obtained and used to determine the properties of the scalar and pseudoscalar mesons. In contrast to the NJL model, the gluonic part has the one-fourth contribution to the fermion mass. The critical density with the chiral symmetry restored is about 6ρ0 .
Key words ：
21.65.+f
14.40.-n
11.30.Rd
出版日期: 1998-09-01
引用本文:
JIANG Wei-zhou;QIU Xi-jun;. Medium Effects on Dynamical Properties of the Fermion and Mesons in the Gauged Nambu- Jona-Lasinio Model[J]. 中国物理快报, 1998, 15(9): 639-641.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I9/639
[1]
WANG Shun-Jin;LI Lei;ZHOU Shan-Gui;ZHANG Guang-Biao. On the Physical Contents of the Light-Cone QCD Effective Hamiltonian on Meson Sector
[2]
DAI Lian-Rong;ZHANG Zong-Ye;YU You-Wen⊃. Structure of Di-Ω Dibaryon
[3]
CHEN Wei;LAM Yu-Yiu;WEN De-Hua;LIU Liang-Gang. Influence of Hyperon on 1 S0 Superfluidity of Nucleons in Neutron Star Matter
[4]
V. Bashiry. Lepton Polarization Asymmetry in B→+ - Decay beyond the Standard Model
[5]
DAI Lian-Rong. Dibaryon Structure in Extended Chiral SU(3) Quark Model
[6]
LIANG Yin-Hua;GUO Hua;. Lambda Hypernuclei in a Chiral Hadronic Model
[7]
LIU Yu-Xin;;CHAO Jing-Yi;CHANG Lei;YUAN Wei. Density Dependence of the Mass and Decay Constant of Pion in Nuclear Matter in the Dyson--Schwinger Equation Approach of QCD
[8]
CHEN Wen-Fang;LU Ding-Hui. In-Medium Nucleon Electromagnetic Form Factors in Vector Meson Dominance Model
[9]
SONG Hong-Qiu;;SU Ru-Keng;QIAN Wei-Liang. Influence of Different Y-Y Interactions on the Stability of Strange Hadronic Matter
[10]
ZHANG Xu-Ming;QIAN Wei-Liang;SU Ru-Keng. Liquid-Gas Phase Transition for Asymmetric Nuclear Matter in the Zimanyi-Moszkowski Model
[11]
YUAN Wei;LIU Yu-Xin;;. Density Dependence of the Beta Decay Width in Astronuclear Matter
[12]
GUO Hua;ZHOU Ran;LIU Yu-Xin;;LIU Bo;LI Xi-Guo. In-Medium K+ and K- Production and K- Condensation in Supernova Matter
[13]
YANG Ji-Feng. Trace Anomalies and Chiral Ward Identities
[14]
ZHANG Hu-Yong;SHEN Wen-Qing;REN Zhong-Zhou;MA Yu-Gang;JIANG Wei-Zhou;CAI Xiang-Zhou;ZHONG Chen;CHEN Jin-Gen;GUO Wei;WEI Yi-Bin;ZHOU Xing-Fei;MA Guo-Liang;WANG Kun. Nuclear Radii Extracted from Experimental Reaction Cross Sections
[15]
SHEN Hong;;ZHANG Ze-Lin. Neutron Star Properties in the Relativistic Mean Field Theory
1998, Vol. 15 
