Open AccessInfluence of nucleon motion on the effective mass and energy of kaon in dense nuclear matter
Author(s) -
Yaowen Xing,
Yanyan Wang,
Y. Zhu,
Yongmei Zheng
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.012501
Subject(s) - physics , nuclear matter , covariant transformation , quasiparticle , mean field theory , nucleon , particle physics , nuclear physics , dense matter , effective mass (spring–mass system) , field (mathematics) , quantum electrodynamics , condensed matter physics , classical mechanics , quantum mechanics , neutron star , superconductivity , mathematics , pure mathematics
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.