Study of various charged p-meson masses in asymmetric nuclear matter
We study the effective masses of p-mesons for different charged states in asymmetric nuclear matter (ANM) using the Quantum Hadrodynamics II model.The closed form analytical results are presented for the effective masses of p-mesons.We have shown that the different charged p-mesons have mass splitting similar to various charged pions.The effect of the Dirac sea is also examined, and it is found that this effect is very important and leads to a reduction of the different charged p-meson masses in ANM.
作 者: YAO Hai-Bo WU Shi-Shu 作者单位: Center for Theoretical Physics and School of Physics,Jilin University,Changchun 130023,China 刊 名: 中国物理C(英文版) ISTIC 英文刊名: CHINESE PHYSICS C 年,卷(期): 2009 33(10) 分类号: O4 关键词: asymmetric nuclear matter p-meson effective mass Dirac sea