Chiral corrections to the 1^-＋ exotic meson mass  

作　　者：周彬 孙志峰 刘翔 朱世琳 

机构地区：[1]Department of Physics, Peking University, Beijing 100871, China [2]Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigacion de Paterna, Aptdo 22085, 46071 Valencia, Spain [3]School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China [4]Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China [5]Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China

出　　处：《Chinese Physics C》2017年第4期1-12,共12页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11222547,11175073,11575008)and 973 Program;supported by the National Youth Top-Level Talent Support Program(“Thousand Talents Scheme”)

摘　　要：We first construct the effective chiral Lagrangians tor the 1^-＋ exotic mesons.With the infrared regularization scheme,we derive the one-loop infrared singular chiral corrections to the π1（1600） mass explicitly.We investigate the variation of the different chiral corrections with the pion mass under two schemes.Hopefully,the explicit non-analytical chiral structures will be helpful for the chiral extrapolation of lattice data from the dynamical lattice QCD simulation of either the exotic light hybrid meson or the tetraquark state.We first construct the effective chiral Lagrangians tor the 1^-＋ exotic mesons.With the infrared regularization scheme,we derive the one-loop infrared singular chiral corrections to the π1（1600） mass explicitly.We investigate the variation of the different chiral corrections with the pion mass under two schemes.Hopefully,the explicit non-analytical chiral structures will be helpful for the chiral extrapolation of lattice data from the dynamical lattice QCD simulation of either the exotic light hybrid meson or the tetraquark state.

关 键 词：exotic mesons hybrid state lattice QCD 

分 类 号：O572.33[理学—粒子物理与原子核物理]