Study of Doubly Heavy Baryon Spectrum via QCD Sum Rules  

作　　者：汤亮 袁煦昊 乔从丰 李学潜 

机构地区：[1]School of Physics,Nankai University [2]Department of Physics,Graduate University,Chinese Academy of Sciences

出　　处：《Communications in Theoretical Physics》2012年第3期435-444,共10页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China (NSFC);by the CAS Key Projects KJCX2-yw-N29 and H92A0200S2

摘　　要：In this work, we calculate the mass spectrum of doubly heavy baryons with the diquaxk model in terms of the QCD sum rules. The interpolating currents are composed of a heavy diquaxk field and a light quark field. Contributions of the operators up to dimension six are taken into account in the operator product expansion. Within a reasonable error tolerance, our numerical results axe compatible with other theoretical predictions. This indicates that the diquaxk picture reflects the reality and is applicable to the study of doubly heavy baryons.

关 键 词：BARYONS QCD sun rules other nonperturbative calculation 

分 类 号：O572.243[理学—粒子物理与原子核物理] O572.34[理学—物理]