Chinese Physics C > 2003, Vol. 27 > Issue(11): 995-998

Kaon Effective Mass in Nuclear Matter

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Collisions, Lanzhou 730000, ChinaInstitute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
Using different ratioes of ρs to ρb , we have calculated the in-medium kaon and antikaon effective masses which are not only dependent on the nuclear vector density ρs but also on the scalar density ρs . Based on the Walecka model and in the relativistic mean field approximation, the relation between the two nuclear densities is also discussed and then the dependence of in-medium kaon and antikaon effective masses are improved.

References

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Kaplan D B, Nelson A E. Phys. Lett., 1986, B175:572 Nelson A E, Kaplan D B. Phys. Lett., 1987, B192:1933 Classing W, Bratkovskaya. Phys. Rep., 1999, 308:654 LI G Q, Ko C M, FANG X S. Phys. Lett., 1994, B329:1495 LI G Q, Ko C M, LI Bao–An. Phys. Rev. Lett., 1995, 74:235 6 Cohen Thomas D, Furnstahl R J, Griege David K. Phys. Rev., 1992,C45:1881 7 Barth R et al. Phys. Rev. Lett., 1997, 78:40078 Laue F et al. Phys. Rev. Lett., 1999, 82:1640 9 LI G Q, Brown G E. Nucl. Phys., 1997, A625:37210 Serot B D, Walecka J D. Adv. Nucl. Phys., 1986, 16:1 11 Walecka J D. Ann. Phys. (N. Y.), 1974, 83:491 12 Ko C M, LI Qi, WANG Ren–Chuan. Phys. Rev. Lett., 1987, 59:108413 DING Da–Zhao, CHEN Yong–Shou, ZHANG Huan–Qiao. Progress of Nuclear Physics. Shanghai: Shanghai Scientific Technical Publishers,1997 (in Chinese)(丁大钊,陈永寿,张焕乔.原子核物理进展,上海:上海科学技术出版社,1997)14 ZHUANG Peng–Fei, HUANG M. YANG Z. Phys. Rev., 2000, C62:05490115 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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GAO Yuan, LI Xi-Guo and JIA Duoje. Kaon Effective Mass in Nuclear Matter[J]. Chinese Physics C, 2003, 27(11): 995-998.

GAO Yuan, LI Xi-Guo and JIA Duoje. Kaon Effective Mass in Nuclear Matter[J]. Chinese Physics C, 2003, 27(11): 995-998. shu

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Received: 2003-01-23
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

Kaon Effective Mass in Nuclear Matter

Corresponding author:LI Xi-Guo,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Collisions, Lanzhou 730000, ChinaInstitute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date:2003-01-23
Accepted Date:1900-01-01
Available Online:2003-11-05

Abstract:Using different ratioes of ρs to ρb , we have calculated the in-medium kaon and antikaon effective masses which are not only dependent on the nuclear vector density ρs but also on the scalar density ρs . Based on the Walecka model and in the relativistic mean field approximation, the relation between the two nuclear densities is also discussed and then the dependence of in-medium kaon and antikaon effective masses are improved.