Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00618359" target="_blank" >RIV/61389005:_____/25:00618359 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00618359 RIV/68407700:21340/25:00388554

Výsledek na webu

<a href="https://journals.aps.org/prc/abstract/10.1103/PhysRevC.111.015201" target="_blank" >https://journals.aps.org/prc/abstract/10.1103/PhysRevC.111.015201</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.111.015201" target="_blank" >10.1103/PhysRevC.111.015201</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations

Popis výsledku v původním jazyce

First measurements of hadron- Lambda(h-Lambda) azimuthal angular correlations in p-Pb collisions at root s(NN) = 5.02 TeV using the ALICE detector at the Large Hadron Collider are presented. These correlations are used to separate the production of associated Lambda baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near side), those produced in the opposite direction (away side), and those whose production is uncorrelated with the jet axis (underlying event). The per-trigger associated Lambda yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle pT and event multiplicity. Comparisons with the DPMJET event generator and previous measurements of the phi(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in both the jetlike regions and the underlying event. The production of Lambda relative to charged hadrons is also enhanced in the underlying event when compared to the jetlike regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event.

Název v anglickém jazyce

Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations

Popis výsledku anglicky

First measurements of hadron- Lambda(h-Lambda) azimuthal angular correlations in p-Pb collisions at root s(NN) = 5.02 TeV using the ALICE detector at the Large Hadron Collider are presented. These correlations are used to separate the production of associated Lambda baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near side), those produced in the opposite direction (away side), and those whose production is uncorrelated with the jet axis (underlying event). The per-trigger associated Lambda yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle pT and event multiplicity. Comparisons with the DPMJET event generator and previous measurements of the phi(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in both the jetlike regions and the underlying event. The production of Lambda relative to charged hadrons is also enhanced in the underlying event when compared to the jetlike regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Physical Review C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

111

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

22

Strana od-do

015201

Kód UT WoS článku

001426037800001

EID výsledku v databázi Scopus

2-s2.0-85215849226