Meson electro-magnetic form factors in an extended Nambu–Jona-Lasinio model including heavy quark flavors

作     者：栾义龙 陈晓林 邓卫真 

作者机构：School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2015年第39卷第11期

页      面：17-23页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

主　　题：NJL model heavy meson form factor magnetic moment 

摘      要：Based on an extended NJL model including heavy quark flavors, we calculate the form factors of pseudoscalar and vector mesons. After taking into account the vector-meson-dominance effect, which introduces a form factor correction to the quark vector coupling vertices, the form factors and electric radii of π^＋ and K^＋ pseudo-scalar mesons in the light flavor sector fit the experimental data well. The magnetic moments of the light vector mesons ρ^＋and K^＊＋are comparable with other theoretical calculations. The form factors in the light-heavy flavor sector are presented to compare with future experiments or other theoretical calculations.