论文标题
陌生性$ {s = -3} $和$ { - 4} $手性有效领域理论中的baryon-baryon互动
Strangeness ${S=-3}$ and ${-4}$ baryon-baryon interactions in chiral effective field theory
论文作者
论文摘要
对手性有效野外理论中涉及Hyper子的Baryon-Baryon互动的研究，到目前为止，在手性扩展中一直表现为近代领导顺序（NLO），这表明，对于陌生感$ s = -1 $ = -1 $（$λn$，$σn$），$ s = -2 $ = -2 $（$λλ$，$λ$，$）的散布和散布的散布，并符合一致的数据。根据破裂的SU（3）风味对称性的假设实现。我们探讨了这种方法在NLO级别的可能扩展到陌生感$ s = -3 $和$ s = -4 $ baryon-baryon系统，其中经验信息相当稀少。具体而言，我们解决了以下问题，如何在重离子碰撞和/或高能质子 - 普罗顿碰撞中的两体相关功能的测量值可以帮助限制$ξλ$或$ $ξξ$等通道中的相互作用。
Studies of the baryon-baryon interaction involving hyperons within chiral effective field theory, so far performed up to next-to-leading order (NLO) in the chiral expansion, have shown that for the strangeness $S=-1$ ($ΛN$, $ΣN$) and $S=-2$ ($ΛΛ$, $ΞN$) sectors a consistent and satisfactory description of the available scattering data and experimental constraints can be achieved based on the assumption of broken SU(3) flavor symmetry. We explore the possible extension of this approach at the NLO level to strangeness $S=-3$ and $S=-4$ baryon-baryon systems where empirical information is rather scarce. Specifically we address the question how measurements of two-body correlation functions in heavy-ion collisions and/or in high-energetic proton-proton collisions can help to constrain the interaction in channels like $ΞΛ$ or $ΞΞ$.
