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Femtoscopic correlations and the $$\varLambda _c N$$ Λ c N interaction
The European Physical Journal A ( IF 2.7 ) Pub Date : 2020-07-18 , DOI: 10.1140/epja/s10050-020-00190-0
J. Haidenbauer , G. Krein , T. C. Peixoto

We study the prospects for deducing constraints on the interaction of charmed baryons with nucleons from measurements of two-particle momentum correlation functions for \(\varLambda _c p\). The correlation functions are calculated for \(\varLambda _c N\) and \(\varSigma _c N\) interactions that have been extrapolated from lattice QCD simulations at unphysical masses of \(m_\pi =410-570\) 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 \(\varLambda _c p\) correlation functions could indeed allow one to discriminate between strongly attractive \(\varLambda _c N\) forces, as predicted by some phenomenological models, and a weakly attractive interaction as suggested by the presently available lattice simulations.

中文翻译:

Femtoscopic相关性和$$ \ varLambda _c N $$Λc N相互作用

我们从\(\ varLambda _c p \)的两个粒子动量相关函数的测量值中,研究了推断迷人重子与核子相互作用的约束条件的前景。为\(\ varLambda _c N \)\(\ varSigma _c N \)相互作用计算了相关函数,这些相互作用已根据非物理质量的\(m_ \ pi = 410-570 \)  MeV从晶格QCD模拟中推算出。以手性有效场理论为指导的物理点。另外,我们从文献中考虑现象学\(Y_c N \)模型,以详细探讨结果对相互作用性质的敏感性。我们发现\(\ varLambda _c p \)的度量相关函数确实可以区分某些现象学模型所预测的强吸引力\(\ varLambda _c N \)力与当前可用的格点模拟所建议的弱吸引力之间的区别。
更新日期:2020-07-18
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