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High Energy Physics - Phenomenology

arXiv:2309.08756 (hep-ph)
[Submitted on 15 Sep 2023 (v1), last revised 20 Dec 2023 (this version, v2)]

Title:Constraining the low-energy S=-2 meson-baryon interaction with two-particle correlations

Authors:V. Mantovani Sarti, A. Feijoo, I. Vidaña, A. Ramos, F. Giacosa, T. Hyodo, Y. Kamiya
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Abstract:The two-particle correlation technique applied to $K^-\Lambda$ pairs in pp collisions at LHC recently provided the most precise data on the strangeness $S=-2$ meson-baryon interaction. In this letter, we use for the first time femtoscopic data to constrain the parameters of a low-energy effective QCD Lagrangian. The tuned model delivers new insights on the molecular nature of the $\Xi(1620)$ and $\Xi(1690)$ states. This procedure opens the possibility to determine higher order corrections, directly constraining QCD effective models particularly in the multi-strange and charm sectors.
Subjects: High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Cite as: arXiv:2309.08756 [hep-ph]
  (or arXiv:2309.08756v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2309.08756

Submission history

From: Valentina Mantovani Sarti [view email]
[v1] Fri, 15 Sep 2023 20:54:59 UTC (61 KB)
[v2] Wed, 20 Dec 2023 11:28:51 UTC (65 KB)
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