Exotic ΩΩ dibaryon states in a molecular picture  

作　　者：Xiao-Hui Chen Qi-Nan Wang Wei Chen Hua-Xing Chen 陈晓辉;王齐男;陈伟;陈华星(School of Physics,Sun Yat-Sen University,Guangzhou 510275,China;School of Physics,Southeast University,Nanjing 210094,China)

机构地区：[1]School of Physics,Sun Yat-Sen University,Guangzhou 510275,China [2]School of Physics,Southeast University,Nanjing 210094,China

出　　处：《Chinese Physics C》2021年第4期6-13,共8页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China (11722540, 12075019);the Fundamental Research Funds for the Central Universities;the National Key Research and Development Program of China (2020YFA0406400).

摘　　要：We investigate the exotic ΩΩ dibaryon states with J^(P)=0^(+)and 2^(+)in a molecular picture.We construct a tensorΩΩmolecular interpolating current and calculate the two-point correlation function within the method of QCD sum rules.Our calculations indicate that the masses of the scalar and tensor dibaryon states are mΩΩ,0^(+)=(3.33±0.51)GeV and mΩΩ,2^(+)=(3.15±0.33)GieV,respectively,which are below the 2mΩthreshold.Within error,these results do not negate the existence of loosely bound molecularΩΩdibaryon states.These exotic strangeness S=-6 and doubly-chargedΩΩdibaryons,if they exist,may be identified in heavy-ion collision processes in the fu-ture.

关 键 词：QCD sum rules molecular state DIBARYON 

分 类 号：O572.33[理学—粒子物理与原子核物理]