Szczegóły publikacji
Opis bibliograficzny
Measurement of the $p–\Sigma^+$ correlation function in pp collisions at $\sqrt{s}$=13 TeV / 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. 140252, s. 1–12. — Bibliogr. s. 11–12, Abstr. — Publikacja dostępna online od: 2026-02-09
Autorzy (1051)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 166767 |
|---|---|
| Data dodania do BaDAP | 2026-03-31 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.physletb.2026.140252 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physics Letters, B |
Abstract
In this letter, the first measurement of the femtoscopic correlation of protons and Σ+ hyperons is presented and used to study the p–Σ+ interaction. The measurement is performed with the ALICE detector in high-multiplicity triggered pp collisions at s=13 TeV. The Σ+ hyperons are reconstructed using a missing-mass approach in the decay channel to p+π0 with π0→γγ, while both Σ+ and protons are identified using a machine learning approach. These techniques result in a high reconstruction efficiency and purity, which allows the measurement of the p–Σ+ correlation function for the first time. Thanks to the high significance achieved in the p–Σ+ correlation signal, it is possible to discriminate between the predictions of different models of the N–Σ interaction and to accomplish a first determination of the p–Σ+ scattering parameters.
