摘要
The properties of kaon at very high baryon density has been a fascinating subject since 1986. Of particular importance is the modification of effective mass of antikaon in-medium. This is expected to not only help us to understander the chiral symmetry restoration but also effect the composition and structure of neutron star.. The modification of kaon and antikaon mass in medium might be a new mechanism of production at energies below the threshold. Based on the mean-field approximation to the effective SU(3)L×SU(3)n chiral Lagrangian, the kaon and anti kaon mass in medium, defined as the energy of a kaon (or antikaon) with zero three momentum,are then given by[1]
基金
SupportedbytheCASKnowledgeInnovationProject(No.KJcx2-sw-N02)MinistryofScienceandTenhnologyofthePeople'sRepublicofChina(No.2002ccb00200).
