A pattern for the flavor dependent quark-antiquark interaction  

作　　者：Muyang Chen Lei Chang 陈慕阳;常雷(School of Physics, Nankai University)

机构地区：[1]School of Physics,Nankai University,Tianjin 300071,China

出　　处：《Chinese Physics C》2019年第11期85-90,共6页中国物理C（英文版）

基　　金：Work supported by:the Chinese Government’s Thousand Talents Plan for Young Professionals

摘　　要：A flavor dependent kernel is constructed based on the rainbow-ladder truncation of the Dyson-Schwinger and Bethe-Salpeter equations in quantum chromodynamics.The quark-antiquark interaction is composed of a flavor dependent infrared part and a flavor independent ultraviolet part.Our model gives a successful and unified description of the light,heavy and heavy-light ground state pseudoscalar and vector mesons.Our model shows,for the first time,that the infrared enhanced quark-antiquark interaction is stronger and wider for lighter quarks.A flavor dependent kernel is constructed based on the rainbow-ladder truncation of the Dyson-Schwinger and Bethe-Salpeter equations in quantum chromodynamics.The quark-antiquark interaction is composed of a flavor dependent infrared part and a flavor independent ultraviolet part.Our model gives a successful and unified description of the light,heavy and heavy-light ground state pseudoscalar and vector mesons.Our model shows,for the first time,that the infrared enhanced quark-antiquark interaction is stronger and wider for lighter quarks.

关 键 词：Dyson-Schwinger EQUATION Bethe-Salpeter EQUATION heavy-light MESONS FLAVOR DEPENDENCE 

分 类 号：O57[理学—粒子物理与原子核物理]