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Influence of nucleon motion on the effective mass and energy of kaon in dense nuclear matter

Wang Yan-Yan Zhu Yu-Lan Zheng Yu-Ming Xing Yong-Zhong

Influence of nucleon motion on the effective mass and energy of kaon in dense nuclear matter

Wang Yan-Yan, Zhu Yu-Lan, Zheng Yu-Ming, Xing Yong-Zhong
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  • Received Date:  08 May 2009
  • Accepted Date:  04 March 2010
  • Published Online:  15 January 2011

Influence of nucleon motion on the effective mass and energy of kaon in dense nuclear matter

  • 1. (1)College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China; (2)Department of Physics, Tianshui Normal University, Tianshui 741000, China;China Institute of Atomic Energy, Beijing 102413,China; (3)Department of Physics, Tianshui Normal University, Tianshui 741000, China;College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China

Abstract: In the present paper, the effective mass and energy of kaon in dense and hot nuclear matter is studied. Our special attention is paid to the comparison of various definitions of quasi-particle model of kaons used in transport theories. The effective mass of kaon defined in popular mean field theory increases with increasing of the density of nuclear matter, while the quantity used in covariant kaon dynamics decreases with the density increasing. The properties of mean field acting on kaon by hot and dense nuclear matter depends not only on the form of quasiparticle model of kaons, but on the motion of nucleons around it.

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