Yukawa Potential at Finite Temperature and Finite Density

QIAN Zhi-Xin; ZHONG Wan-Heng; SU Ru-Keng

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1993, Vol. 17> Issue(5) : 417-422

Yukawa Potential at Finite Temperature and Finite Density

Department of Physics,Fuden University,Shanghai 200433

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Abstract：
By means of the real time Green's function method,the yukawa potential is extended to finite temperature and finite density.It is found that the effective mass of sigma meson will decrease as the temperature and/or density increase.The results given by the real time Green's function method and the imaginary time Green's function method are compared.

References

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G. E. Brown, Nucl. Phys.，A522(1991),397.[2]G. E. Brown and M. Rho, Phys. Rev. Lett.66(1991)2720.[3]"Chiral Solitons" ed K. F. Liu, World Sci.，(1987).[4〕E. Witten, Nucl. Phys.，B160(1979),57. R. K. Su,"Quark-Gluon structure of Hardons and Nuclei"，ed. L. S. Kisslinger and X. Qiu, Int. Acad. Pub. (1991),p.258.[5]R. K. Su and G. T. Zheng, Jour. of Phys.，G16(1990) , 203.[6]陈涛，苏汝铿，高能物理与核物理，12(1988),131.[7]郑国桐，苏汝铿，高能物理与核物理，14(1990),220.[8]R. K. Su,S. J. Yang, S. S. Cai and G. T. Zheng, Chinese Phys. Lett. ,7(1990),485.[9]郑国桐，苏汝铿，高能物理与核物理，15(1991),689.[10]郑国桐，苏汝铿，“有限温度下的单甲η介子交换势”，高能物理与核物理，待发表.[11] R. K. Su,Z. X. Qian and G. T. Zheng, Jour. of Phys.，G17(1991),1785.[12]R. K. Su, S. D. Yang and T. T. S. Kuo, Phys. Rev. ,C35(1987),1539.[13]R. K. Su and F. M. Lin, Phys. Rev.，C39(1989),2438.[14]R. K. Su and F. M. Lin, Jour. of Phys.，G15(1989),1591.[15]B. U. Serot and J. D. Walecka,"Adv. Nucl. Phys. "ed. J. W. Negele and E. Vogt (Plenum)vol. 16(1985).

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[3]	Chen Xiangjun , Liu Lianshou . Regularization of Infrared Divergences in the Vacuum Graphs of Massless Field at Finite Temperature. Chinese Physics C, 1997, 21(5): 425-432.
[4]	Deng Shenghua , Wang Enke , Li Jiarong . Two-Loop Effective Potential of Non-topological Soliton Bag Model at Finite Temperature. Chinese Physics C, 1995, 19(8): 713-726.
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[9]	HUANG Jing-Yi , CAI Sheng-Shan , HU Si-Zhu , SU Ru-Keng . Chiral Bag Model at Finite Temperature. Chinese Physics C, 1992, 16(6): 494-498.
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[11]	ZHENG Guo-Tong , SU Ru-Keng . Vextex Corrections and one σ Exchange Potential at Finite Temperature. Chinese Physics C, 1991, 15(8): 689-694.
[12]	LOU Sen-Yue , NI Guang-Jiong . VARIATIONAL ANALYSIS OF THE GROSS-NEVEU MODEL AT ZERO AND FINITE TEMPERATURE. Chinese Physics C, 1990, 14(3): 228-235.
[13]	WANG En-Ke , LI Jia-Rong . CHIRAL PHASE TRANSITION IN A MODEL WITH DYNAMICAL SPONTANEOUS-SYMMETRY-BREAKING AT FINITE TEMPERATURE AND DENSITY. Chinese Physics C, 1990, 14(11): 980-990.
[14]	ZHENG Guo-Tong , SU Ru-Keng . π AND σ MESON EXCHANGE POTENTIALS OF NUCLEON-NUCLEON INTERACTION AT FINITE TEMPERATURE. Chinese Physics C, 1990, 14(3): 220-227.
[15]	WANG En-Ke , LI Jia-Rong . DECONFINEMENT TRANSITION OF NONTOPOLOGICAL SOLITON MODEL AT FINITE TEMPERATURE. Chinese Physics C, 1989, 13(11): 1003-1006.
[16]	BI Pin-Zhen . KAONS CONDENSATION AT FINITE TEMPEATURE. Chinese Physics C, 1989, 13(3): 219-221.
[17]	CHEN Tao , SU Ru-Keng . THE ONE PION EXCHANGE POTENTIAL AT FINITE TEMPERATURE. Chinese Physics C, 1988, 12(1): 140-144.
[18]	WANG Qin-Mou . THERMODYNAMICAL PROPERTIES OF GAUGE THEORIES AT FINITE TEMPERATURE AND CHEMICAL POTENTIAL (Ⅱ). Chinese Physics C, 1987, 11(2): 182-185.
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[20]	SU Ru-Keng , BI Pin-Zhen . THE ELEMENTARY EXCITATION SPECTRA OF MOHAPATRA-SENJANOVIC MODEL AT FINITE TEMPERATURE. Chinese Physics C, 1984, 8(2): 177-184.

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QIAN Zhi-Xin, ZHONG Wan-Heng and SU Ru-Keng. Yukawa Potential at Finite Temperature and Finite Density[J]. Chinese Physics C, 1993, 17(5): 417-422.

QIAN Zhi-Xin, ZHONG Wan-Heng and SU Ru-Keng. Yukawa Potential at Finite Temperature and Finite Density[J]. Chinese Physics C, 1993, 17(5): 417-422. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Yukawa Potential at Finite Temperature and Finite Density

Corresponding author: QIAN Zhi-Xin,

Department of Physics,Fuden University,Shanghai 200433

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1993-05-05

Abstract: By means of the real time Green's function method,the yukawa potential is extended to finite temperature and finite density.It is found that the effective mass of sigma meson will decrease as the temperature and/or density increase.The results given by the real time Green's function method and the imaginary time Green's function method are compared.