Three-body force and the tetraquark interpretation of light scalar mesons  

作　　者：邹范勇 陈晓林 邓卫真 

机构地区：[1]Department of Physics,Peking University,Beijing 100871,China

出　　处：《Chinese Physics C》2008年第7期515-520,共6页中国物理C（英文版）

基　　金：Supported by NSFC(10675008)

摘　　要：We study the possible tetraquark interpretation of light scalar meson states ao（980）, f0（980）,k, within the framework of the non-relativistic potential model. The wave functions of tetraquark states are obtained in a space spanned by multiple Gaussian functions. We find that the mass spectra of the light scalar mesons can be well accommodated in the tetraquark picture if we introduce a three-body quark interaction in the quark model. Using the obtained multiple Gaussian wave functions, the decay constants of tetraquarks are also calculated within the ＂fall apart＂ mechanism.We study the possible tetraquark interpretation of light scalar meson states ao（980）, f0（980）,k, within the framework of the non-relativistic potential model. The wave functions of tetraquark states are obtained in a space spanned by multiple Gaussian functions. We find that the mass spectra of the light scalar mesons can be well accommodated in the tetraquark picture if we introduce a three-body quark interaction in the quark model. Using the obtained multiple Gaussian wave functions, the decay constants of tetraquarks are also calculated within the ＂fall apart＂ mechanism.

关 键 词：scalar meson TETRAQUARK three-body force 

分 类 号：O572.33[理学—粒子物理与原子核物理]