Analysis of Y(4660) and Related Bound States with QCD Sum Rules  

作　　者：王志刚 张晓宏 

机构地区：[1]Department of Physics,North China Electric Power University

出　　处：《Communications in Theoretical Physics》2010年第8期323-332,共10页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation under Grant No.10775051; Program for New Century Excellent Talents in University under Grant No.NCET-07-0282; Project Supported by Chinese Universities Scientific Fund

摘　　要：In this article, we take the vector charmonium-like state Y（4660） as a φ＇ fo（980） bound state （irrespective of the hadro-charmonium and the molecular state） tentatively, and study its mass using the QCD sum rules. The numerical value My = 4.71 ±0.26 GeV is consistent with the experimental data. Considering the SU（3） symmetry of the light flavor quarks and the heavy quark symmetry, we also study the bound states φ＇a（400-1200）, γ′″ fo（980）, and γ′″σ（400-1200） with the QCD sum rules, and make reasonable predictions for their masses.

关 键 词：φ＇ f0（980） bound state QCD sum rules 

分 类 号：O572.243[理学—粒子物理与原子核物理] O413.1[理学—物理]