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arXiv 2004.08136nucl-thhep-ph
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飞秒相关性和$Λ_c N$相互作用

Femtoscopic correlations and the $Λ_c N$ interaction

J. Haidenbauer, G. Krein, T. C. Peixoto

摘要:

研究了从$Λ_c p$的两粒子动量关联函数的测量中推导粲重子与核子相互作用的约束条件的前景。以手征有效场论为指导,从非物理质量为$m_π=410-570$ MeV的格点量子色动力学模拟结果外推到物理点,计算了$Λ_c N$和$Σ_c N$相互作用的关联函数.此外,我们考虑从文献中的唯象$Y_c N$模型,详细探讨结果的相互作用的属性的敏感性。我们发现,测量的$Λ_c p$关联函数确实可以让一个强吸引力的$Λ_c N$力,如一些唯象模型预测,和弱吸引力的相互作用,建议目前可用的晶格模拟。

英文摘要:

We study the prospects for deducing constraints on the interaction of charmed baryons with nucleons from measurements of two-particle momentum correlation functions for $Λ_c p$. The correlation functions are calculated for $Λ_c N$ and $Σ_c N$ interactions that have been extrapolated from lattice QCD simulations at unphysical masses of $m_π=410-570$ MeV to the physical point using chiral effective field theory as guideline. In addition, we consider phenomenological $Y_c N$ models from the literature to explore the sensitivity of the results to the properties of the interaction in detail. We find that a measurement of the $Λ_c p$ correlation functions could indeed allow one to discriminate between strongly attractive $Λ_c N$ forces, as predicted by some phenomenological models, and a weakly attractive interaction as suggested by the presently available lattice simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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