Prediction of anΩ_(bbb)Ω_(bbb)Dibaryon in the Extended One-Boson Exchange Model  

作　　者：Ming-Zhu Liu Li-Sheng Geng 刘明珠;耿立升(School of Space and Environment,Beihang University,Beijing 102206,China;School of Physics,Beihang University,Beijing 102206,China;Beijing Key Laboratory of Advanced Nuclear Materials and Physics,Beihang University,Beijing 102206,China;School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]School of Space and Environment,Beihang University,Beijing 102206,China [2]School of Physics,Beihang University,Beijing 102206,China [3]Beijing Key Laboratory of Advanced Nuclear Materials and Physics,Beihang University,Beijing 102206,China [4]School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Physics Letters》2021年第10期6-11,共6页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 1210050997, 11975041, 11735003, and 11961141004)

摘　　要：Since Yukawa proposed that the pion is responsible for mediating the nucleon-nucleon interaction,meson exchanges have been widely used in understanding hadron-hadron interactions.The most studied mesons are theσ,π,ρ,andω,while other heavier mesons are often argued to be less relevant because they lead to short range interactions.However,whether the range of interactions is short or long should be judged with respect to the size of the system studied.We propose that one charmonium exchange is responsible for the formation of theΩ_(bbb)Ω_(bbb)dibaryon,recently predicted by lattice QCD simulations.The same approach can be extended to the strangeness and bottom sectors,leading to the prediction on the existence of??and?bbb dibaryons,while the former is consistent with the existing lattice QCD results,the latter remains to checked.In addition,we show that the Coulomb interaction may break up theΩ_(bbb)Ω_(bbb)pair but not theΩ_(bbb)Ω_(bbb)dibaryons.

关 键 词：MESON interaction checked 

分 类 号：O572.3[理学—粒子物理与原子核物理]