First measurement of the Λ-Ξ interaction in proton–proton collisions at the LHC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00577216" target="_blank" >RIV/61389005:_____/23:00577216 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00577216

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2022.137223" target="_blank" >https://doi.org/10.1016/j.physletb.2022.137223</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2022.137223" target="_blank" >10.1016/j.physletb.2022.137223</a>

Jazyk výsledku

angličtina

Název v původním jazyce

First measurement of the Λ-Ξ interaction in proton–proton collisions at the LHC

Popis výsledku v původním jazyce

The first experimental information on the strong interaction between A and E-strange baryons is presented in this Letter. The correlation function of A-E-and A-E+ pairs produced in high-multiplicity proton-proton (pp) collisions at ,/s = 13 TeV at the LHC is measured as a function of the relative momentum of the pair. The femtoscopy method is used to calculate the correlation function, which is then compared with theoretical expectations obtained using a meson exchange model, chiral effective field theory, and Lattice QCD calculations close to the physical point. Data support predictions of small scattering parameters while discarding versions with large ones, thus suggesting a weak A-E- interaction. The limited statistical significance of the data does not yet allow one to constrain the effects of coupled channels like E-E and N-S2.

Název v anglickém jazyce

First measurement of the Λ-Ξ interaction in proton–proton collisions at the LHC

Popis výsledku anglicky

The first experimental information on the strong interaction between A and E-strange baryons is presented in this Letter. The correlation function of A-E-and A-E+ pairs produced in high-multiplicity proton-proton (pp) collisions at ,/s = 13 TeV at the LHC is measured as a function of the relative momentum of the pair. The femtoscopy method is used to calculate the correlation function, which is then compared with theoretical expectations obtained using a meson exchange model, chiral effective field theory, and Lattice QCD calculations close to the physical point. Data support predictions of small scattering parameters while discarding versions with large ones, thus suggesting a weak A-E- interaction. The limited statistical significance of the data does not yet allow one to constrain the effects of coupled channels like E-E and N-S2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

844

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

137223

Kód UT WoS článku

001066065100001

EID výsledku v databázi Scopus

2-s2.0-85162181771