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相关论文: Approach to meson-baryon femtoscopy using effectiv…

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We have calculated the femtoscopic correlation functions of meson-baryon pairs in the strangeness $S=-1$ sector, employing a unitarized chiral interaction model up to next-to-leading order. We will show preliminary results for the…

高能物理 - 唯象学 · 物理学 2024-10-29 Pablo Encarnacion , Albert Feijoo , Angels Ramos

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…

高能物理 - 唯象学 · 物理学 2025-06-04 P. Encarnación , A. Feijoo , V. Mantovani Sarti , A. Ramos

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…

高能物理 - 唯象学 · 物理学 2023-01-25 Zhi-Wei Liu , Kai-Wen Li , Li-Sheng Geng

We derive the leading order strangeness S=-2 baryon-baryon interactions in chiral effective field theory. The potential consists of contact terms without derivatives and of one-pseudoscalar-meson exchanges. The contact terms and the…

核理论 · 物理学 2016-03-28 H. Polinder , J. Haidenbauer , U. -G. Meißner

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…

核实验 · 物理学 2025-09-30 ALICE Collaboration

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 $S=-1$ ($\Lambda N$, $\Sigma…

核理论 · 物理学 2022-01-21 J. Haidenbauer , U. -G. Meißner

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…

核实验 · 物理学 2017-03-08 Łukasz Kamil Graczykowski

We revisit the strangeness $-1$ sector of the interaction between vector mesons of the $\rho-$nonet and $1/2^+$ ground state baryons ($VB$), within the unitary coupled-channel hidden gauge formalism. We adopt a renormalization scheme that…

高能物理 - 唯象学 · 物理学 2025-07-14 P. Encarnación , M. Albaladejo , A. Feijoo , J. Nieves

The leading order strangeness S=-3 and -4 baryon-baryon interactions are analyzed within chiral effective field theory. The chiral potentials consist of contact terms without derivatives and of one-pseudoscalar-meson exchanges. Assuming…

核理论 · 物理学 2015-05-13 J. Haidenbauer , U. -G. Meißner

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…

核理论 · 物理学 2009-10-28 N. Kaiser , P. B. Siegel , W. Weise

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…

核理论 · 物理学 2025-09-04 Marta Piscitelli , Otón Vázquez Doce

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…

核理论 · 物理学 2026-04-02 Jia-Ming Xie , Zhi-Wei Liu , Jun-Xu Lu , Haozhao Liang , Li-Sheng Geng

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…

高能物理 - 唯象学 · 物理学 2013-11-15 Zhi-Hui Guo , J. A. Oller

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…

高能物理 - 唯象学 · 物理学 2024-07-02 A. Feijoo , M. Korwieser , L. Fabbietti

The capability of the ALICE@LHC and STAR@RHIC experiments to reconstruct $D$ mesons has enabled femtoscopic correlation measurements of open-charm mesons in both small and large systems. In this work, we present a theoretical calculation of…

高能物理 - 唯象学 · 物理学 2025-12-18 Mikel F. Barbat , Juan M. Torres-Rincon , Angels Ramos , Laura Tolos

Hadron femtoscopy has turned into a powerful tool for accessing space-time information of heavy-ion collisions as well as for studying final-state interactions of hadrons. Recently, heavy-flavor femtoscopy has become feasible using the…

高能物理 - 唯象学 · 物理学 2023-10-23 Juan M. Torres-Rincon , Àngels Ramos , Laura Tolos

We present femtoscopic results for proton and Lambda correlation functions measured by ALICE in sqrt(sNN) = 2.76 TeV Pb-Pb collisions. Femtoscopic radii are extracted from pp, pbarpbar, and ppbar pairs. Comparisons of these radii with those…

核实验 · 物理学 2019-08-13 Jai Salzwedel

The strangeness $S=-2$ baryon-baryon interaction is studied in chiral effective field theory up to next-to-leading order. The potential at this order consists of contributions from one- and two-pseudoscalar-meson exchange diagrams and from…

核理论 · 物理学 2016-08-24 J. Haidenbauer , Ulf-G. Meißner , S. Petschauer

In recent years the femtoscopy technique has been used by the ALICE Collaboration in small colliding systems at the LHC to investigate the strong-interaction of hadron pairs in the low-energy regime. The extension of this technique to the…

The main elements and methods of chiral perturbation theory, the effective field theory of the Standard Model below the scale of spontaneous chiral symmetry breaking, are summarized. Applications to the interactions of mesons and baryons at…

高能物理 - 唯象学 · 物理学 2010-12-02 Gerhard Ecker
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