Study of Three-Baryon Systems in a Quark Model for Solution of Hyperon Puzzle  

应用夸克模型研究三重子系统及其对解决超子疑难的启示

作　　者：NAKAMOTO Choki 中本崇基(日本国立技术研究所(KOSEN),铃鹿学院,日本铃鹿510-0294;名古屋大学,日本名古屋464-8602)

机构地区：[1]National Institute of Technology(KOSEN),Suzuka College,Suzuka 510-0294,Japan [2]Nagoya University,Nagoya 464-8602,Japan

出　　处：《原子核物理评论》2024年第3期854-857,共4页Nuclear Physics Review

基　　金：日本学术振兴会(JSPS)资助项目(JP24654071,JP22K03609)。

摘　　要：We evaluate the three-body baryon effect in the quark model to solve the hyperon puzzle.As candidates for the extra repulsive effect required to solve the puzzle,we focus on the structural repulsive core caused by the quark-Pauli effect and the color-magnetic term.The result is that in the lowest thresholdΛNN system,no significant structural repulsive core is obtained,but a strong repulsive three-body effect is obtained from the color-magnetic term.为解决超子疑难,在夸克模型框架下研究了超子物质的三体力。作为解决这个疑难所需的额外排斥效应的候选者,关注由夸克泡利效应和色磁作用引起的排斥芯。结果表明,在ΛNN系统最小阈值处,不存在明显的排斥芯结构,但色磁作用提供了强烈的三体排斥效应。

关 键 词：quark model three-baryon forces hyperon puzzle 

分 类 号：O571.6[理学—粒子物理与原子核物理]