Szczegóły publikacji
Opis bibliograficzny
Study of the interaction between $\Xi$ baryons and light mesons via femtoscopy at the LHC / I. J. Abualrob, [et al.], B. BALIŚ, [et al.], M. GORGOŃ, [et al.], A. HORZYK, [et al.], M. JABŁOŃSKI, [et al.], E. P. JAMRO, [et al.], S. D. KORYCIAK, [et al.], T. M. LELEK, [et al.], E. MAJERZ, [et al.], R. W. MARCJAN, [et al.], D. K. PŁÓCIENNIK, [et al.], P. G. RUSSEK, [et al.], P. K. WIĄCEK, [et al.], M. WOJNAR, [et al.] // Physics Letters . B ; ISSN 0370-2693. — 2026 — vol. 874 art. no. 140227, s. 1–16. — Bibliogr. s. 14–16, Abstr. — Publikacja dostępna online od: 2026-02-02
Autorzy (1039)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 166790 |
|---|---|
| Data dodania do BaDAP | 2026-03-31 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.physletb.2026.140227 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physics Letters, B |
Abstract
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 oppositely charged Ξ-K and Ξ−π pairs obtained in high-multiplicity pp collisions at s=13 TeV at the LHC are presented. For the first time, high-precision data on the Ξ-K interaction are delivered at small relative momenta. The scattering lengths, extracted via the Lednický–Lyuboshits expression of the pair wavefunction, indicate a repulsive and a shallow attractive strong interaction for the Ξ-K and Ξ−π systems, respectively. The Ξ(1620) and Ξ(1690) states are observed in the Ξ−π correlation function and their properties, mass and width, are determined. These measurements are in agreement with other available results. Such high-precision data can help refine the understanding of these resonant states, provide stronger constraints for chirally motivated potentials, and address the key challenge of describing the coupled-channel dynamics that may give rise to molecular configurations.
