Dibaryons: Molecular versus compact hexaquarks

作     者：H.Clement T.Skorodko H.Clement;T.Skorodko

作者机构：Physikalisches Institut der Universität Tübingen and Kepler Center for Astro and Particle PhysicsUniversity of TübingenAuf der Morgenstelle 14D-72076 TübingenGermany 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2021年第45卷第2期

页      面：23-38页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 070202[理学-粒子物理与原子核物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：This work has been supported by DFG(CL 214/3-3) H.Cl.appreciates the support by the Munich Institute for Astro-and Particle Physics(MIAPP)which is funded by the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)under Germany's Excellence Strategy-EXC-2094-390783311。 

主　　题：dibaryon hexaquark molecule 

摘      要：Hexaquarks constitute a natural extension of complex quark systems,just as tetra-and pentaquarks do.To this end,the current status of d^(*)(2380)in both experiment and theory is reviewed.Recent high-precision meas-urements in the nucleon-nucleon channel and analyses thereof have established d^(*)(2380)as an indisputable reson-ance in the long-sought dibaryon channel.Important features of this I(J^(P))=0(3^(+))state are its narrow width and deep binding relative to the 0(1232)0(1232)threshold.Its decay branchings favor theoretical calculations predict-ing a compact hexaquark nature of this state.We review the current status of experimental and theoretical studies on d^(*)(2380)as well as new physics aspects it may bring in future.In addition,we review the situation at the 0(1232)N and N^(*)(1440)N thresholds,where evidence for a number of resonances of presumably molecular nature has been found-similar to the situation in charmed and beauty sectors.Finally,we briefly discuss the situation of dibaryon searches in the flavored quark sectors.