Parameter Effect On Kaon Effective Mass

  • The linear and nonlinear Walecka model has been used to investigate the relation between the scalar density ρS and the vector ρB in the relativistic mean-field approximation and the calculated results of the relation are presented.By using the results,we analyse the parameter effects on the effective masses of kaon and antikaon with different models.The effective masses of kaon and antikaon in asymmetric nuclear matter are also studied by using different models with different parameter sets.The difference of the effective masses between in symmetric and asymmetry nuclear matter is discussed.
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  • [1] . Migdal A B. Sov.Phys. JETP. , 1972, 34: 11842. Sawyer R F. Phys. Rev.Lett . , 1972, 29: 3823. Scalapino D J.Phys. Rev.Lett. , 1972, 29: 3924. Nelson A E, Kaplan D B. Phys.Lett. , 1987, B192: 1935. Kaplan D B, Nelson A E. Phys.Lett. , 1986, B175: 576. Classing W, Bratkovskaya. Phys. Rep. , 1999, 308: 657. LI G Q,Ko C M,FANG X S. Phys. Lett . , 1994, B329: 1498. LI G Q,Ko C M,LI Bao-An. Phys. Rev. Lett . , 1995, 74: 2359. Henning Heiselberg. arXiv: ast ro-ph/9802062 v1 5 Feb 199810. GUO Hua, LIU Bo, LI Xi-Guo. HEP NP, 2003, 27 (2) : 113(in Chinese)(郭华,刘波,李希国.高能物理与核物理,2003,27(2):113)11. LI G Q, Brown G E.Nucl .Phys. , 1997, A625: 37212. Classing W, Bratkovskaya.Phys. Rep. , 1999, 308: 6513. Serot B D,Walecka J D.Adv.Nucl. Phys. , 1986, 16: 114. GAO Yuan,LI Xi-Guo, JIA Duo-Jie.HEP NP, 2003, 27(11) : 995(in Chinese)(高远,李希国,贾多杰.高能物理与核物理,2003,27(11):995) 15. CHUANG K C, WANG C S , Santiago A J.Eur. Phys. J. , 2000, A 9: 45316. Walecka J D. Ann. Phys. (N. Y. ) , 1974, 83: 49117. Horowitz C J, Serot B D.Nucl .Phys. , 1981, A 368: 50318. Rufa M, Reinhard P G, Maruhn J. Phys. Rev. , 1988, C35, 39019. Sugahara Y,Toki H.Nucl .Phys. , 1994, A579: 55720. ZHUANG Peng-Fei , HUANG M, YANG Z. Phys. Rev. , 2000, C62:05490121. ZHUANG Peng-Fei. Nuclear Physics Review, 2000, 19(3) : 306(in Chinese)(庄鹏飞.原子核物理评论,2000,19(3):306)
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LI Xi-Guo, GAO Yuan, GUO Yan-Rui and ZUO Wei. Parameter Effect On Kaon Effective Mass[J]. Chinese Physics C, 2004, 28(9): 973-976.
LI Xi-Guo, GAO Yuan, GUO Yan-Rui and ZUO Wei. Parameter Effect On Kaon Effective Mass[J]. Chinese Physics C, 2004, 28(9): 973-976. shu
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Received: 2003-12-30
Revised: 1900-01-01
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Parameter Effect On Kaon Effective Mass

    Corresponding author: LI Xi-Guo,
  • Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Collisions,Lanzhou 730000,China2 Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China

Abstract: The linear and nonlinear Walecka model has been used to investigate the relation between the scalar density ρS and the vector ρB in the relativistic mean-field approximation and the calculated results of the relation are presented.By using the results,we analyse the parameter effects on the effective masses of kaon and antikaon with different models.The effective masses of kaon and antikaon in asymmetric nuclear matter are also studied by using different models with different parameter sets.The difference of the effective masses between in symmetric and asymmetry nuclear matter is discussed.

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