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Related papers: Femtoscopy study of $\pi^-\Lambda$ and $K^-p$ inte…

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We study the femtoscopic correlation functions of meson-baryon pairs in the strangeness $S=-1$ sector, employing unitarized s-wave scattering amplitudes derived from the chiral Lagrangian up to next-to-leading order. For the first time, we…

High Energy Physics - Phenomenology · Physics 2025-06-04 P. Encarnación , A. Feijoo , V. Mantovani Sarti , A. Ramos

We calculate several femtoscopy correlation functions in the strangeness sectors $S=0$ and $S=-2$ for meson-baryon interactions. We combine the amplitudes of chiral perturbation theory at leading order with the TROY (T-matrix-based Routine…

High Energy Physics - Phenomenology · Physics 2024-10-18 Álvaro Peña Almazán , Juan M. Torres-Rincon

We present the first systematic investigation of the $S=-1$ meson--baryon interaction within a fully off-shell covariant unitarized chiral effective field theory framework up to next-to-leading order. In particular, we perform a detailed…

Nuclear Theory · Physics 2026-04-02 Jia-Ming Xie , Zhi-Wei Liu , Jun-Xu Lu , Haozhao Liang , Li-Sheng Geng

The momentum correlation functions of S = -2 baryon pairs (p Xi^- and Lambda Lambda) produced in high-energy pp and pA collisions are investigated on the basis of the coupled-channel formalism. The strong interaction is described by the…

High Energy Physics - Phenomenology · Physics 2022-02-09 Y. Kamiya , K. Sasaki , T. Fukui , T. Hyodo , K. Morita , K. Ogata , A. Ohnishi , T. Hatsuda

We study the baryon-baryon interactions with strangeness $S = -2$ and corresponding momentum correlation functions in leading order covariant chiral effective field theory. The relevant low energy constants are determined by fitting to the…

High Energy Physics - Phenomenology · Physics 2023-01-25 Zhi-Wei Liu , Kai-Wen Li , Li-Sheng Geng

We report on the first femtoscopic measurement of baryon pairs, such as p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$, measured by ALICE at the Large Hadron Collider (LHC) in proton-proton collisions at $\sqrt{s}$ = 7 TeV. This study…

Nuclear Experiment · Physics 2019-06-17 ALICE Collaboration

We examine the meson-baryon interaction in the strangeness S=-1 sector using an effective chiral Lagrangian. Potentials are derived from this Lagrangian and used in a coupled-channel calculation of the low energy observables. The potentials…

Nuclear Theory · Physics 2009-10-28 N. Kaiser , P. B. Siegel , W. Weise

The first experimental information on the strong interaction between $\Lambda$ and $\Xi^-$ strange baryons is presented in this Letter. The correlation function of $\Lambda-\Xi^-$ and $\overline{\Lambda}-\overline{\Xi}^{+}$ pairs produced…

Nuclear Experiment · Physics 2023-10-06 ALICE Collaboration

Meson-baryon systems with strangeness content provide a unique laboratory for investigating the strong interaction and testing theoretical models of hadron structure and dynamics. In this work, the measured correlation functions for…

Nuclear Experiment · Physics 2025-09-30 ALICE Collaboration

The femtoscopic correlation function has been established in recent years as a high-precision tool for investigating hadron-hadron interactions and exotic states, providing stringent constraints on the dynamics of low-energy strong…

High Energy Physics - Phenomenology · Physics 2026-03-25 Si-Wei Liu , Ju-Jun Xie

The vector meson-baryon interaction in a coupled channel scheme is revisited within the correlation function framework. As illustrative cases to reveal the important role played by the coupled channels, we focus on the $\phi$p and $\rho^0$p…

High Energy Physics - Phenomenology · Physics 2024-07-02 A. Feijoo , M. Korwieser , L. Fabbietti

We study the prospects for deducing constraints on the interaction of charmed baryons with nucleons from measurements of two-particle momentum correlation functions for $\Lambda_c p$. The correlation functions are calculated for $\Lambda_c…

Nuclear Theory · Physics 2020-08-26 J. Haidenbauer , G. Krein , T. C. Peixoto

We study meson-baryon scattering with strangeness -1 in unitary chiral perturbation theory. Ten coupled channels are considered in our work, namely $\pi^0 \Lambda$, $\pi^0 \Sigma^0$, $\pi^- \Sigma^+$, $\pi^+ \Sigma^-$, $K^- p$, $\bar{K}^0…

High Energy Physics - Phenomenology · Physics 2013-11-15 Zhi-Hui Guo , J. A. Oller

A study of the meson-baryon interaction in the $S=-1$ sector is performed, employing a chiral SU(3) lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The model is constrained by a large set of…

High Energy Physics - Phenomenology · Physics 2019-03-27 Albert Feijoo , Volodymyr Magas , Angels Ramos

Femtoscopy is a technique enabling measurements of the space-time characteristics of particle-emitting sources. However, the femtoscopic analysis is also sensitive to the interaction cross-section. In this paper we show the first…

Nuclear Experiment · Physics 2017-03-08 Łukasz Kamil Graczykowski

The interaction between $\Lambda$ baryons and kaons/antikaons is a crucial ingredient for the strangeness $S=0$ and $S=-2$ sector of the meson$-$baryon interaction at low energies. In particular, the $\Lambda{\mathrm{\overline{K}}}$ might…

Nuclear Experiment · Physics 2023-10-12 ALICE Collaboration

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…

High Energy Physics - Phenomenology · Physics 2023-12-21 V. Mantovani Sarti , A. Feijoo , I. Vidaña , A. Ramos , F. Giacosa , T. Hyodo , Y. Kamiya

We have performed a theoretical study of the correlation functions of $K^- d$ and $K^+ d$ pairs and compared them with those provided by the ALICE Collaboration from Pb-Pb collisions, and also from high-multiplicity p-p collisions in the…

High Energy Physics - Phenomenology · Physics 2026-03-04 Àngels Ramos , Juan M. Torres-Rincon , Alejandro de Fagoaga , Esteve Cabré

Motivated by recent experimental measurements of the p$\Omega^-$ correlation function and the concurrent theoretical efforts to describe the strong interaction among hadrons in the strangeness sector, we present a data-driven approach for…

Nuclear Theory · Physics 2025-09-04 Marta Piscitelli , Otón Vázquez Doce

We show that the use of realistic $\pi K$ interactions, obtained from a dispersive analysis of scattering data, as well as relativistic corrections, are essential to describe recently observed $\pi^\pm K_S$ femtoscopic correlations. We…

High Energy Physics - Phenomenology · Physics 2025-05-27 Miguel Albaladejo , Alejandro Canoa , Juan Nieves , Jose Ramón Peláez , Enrique Ruiz-Arriola , Jacobo Ruiz de Elvira
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