Quark-antiquark scattering phase shift and meson spectral function in pion superfluid  

作　　者：Tao Xia Jin Hu Shijun Mao 夏涛;胡进;毛施君(College of Advanced Interdisciplinary Studies, National University of Defense Technology;School of Science, Xi'an Jiaotong University)

机构地区：[1]College of Advanced Interdisciplinary Studies, National University of Defense Technology [2]School of Science, Xi'an Jiaotong University

出　　处：《Chinese Physics C》2019年第5期47-56,共10页中国物理C（英文版）

基　　金：Supported by the NSFC(11775165);Fundamental Research Funds for the Central Universities

摘　　要：We study the quark-antiquark scattering phase shift and meson spectral function in the pion superfluid described by the Nambu-Jona-Lasinio model. Meson mixing in the pion superfluid dramatically changes the full scattering phase shift and significantly broadens the spectral function of some collective modes.We study the quark-antiquark scattering phase shift and meson spectral function in the pion superfluid described by the Nambu-Jona-Lasinio model. Meson mixing in the pion superfluid dramatically changes the full scattering phase shift and significantly broadens the spectral function of some collective modes.

关 键 词：SCATTERING phase SHIFT MESON SPECTRAL function PION SUPERFLUID 

分 类 号：O4[理学—物理]