Jet-like correlations with respect to KS0 and Λ ((Λ)over-bar) in pp and central Pb-Pb collisions at root sNN=5.02 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00369690" target="_blank" >RIV/68407700:21340/23:00369690 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1140/epjc/s10052-023-11614-8" target="_blank" >https://doi.org/10.1140/epjc/s10052-023-11614-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-023-11614-8" target="_blank" >10.1140/epjc/s10052-023-11614-8</a>

Result language

angličtina

Original language name

Jet-like correlations with respect to KS0 and Λ ((Λ)over-bar) in pp and central Pb-Pb collisions at root sNN=5.02 TeV

Original language description

Two-particle correlations with K-S(0), Lambda/(Lambda) over bar, and charged hadrons as trigger particles in the transverse momentum range 8<p(T),trig<16 GeV/c, and associated charged particles within 1<p(T),assoc<8 GeV/c, are studied at midrapidity in pp and central Pb-Pb collisions at a centre-of-mass energy per nucleon-nucleon collision root s(NN) = 5.02 TeV with the ALICE detector at the LHC. After subtracting the contributions of the flow background, the per-trigger yields are extracted on both the near and away sides, and the ratio in Pb-Pb collisions with respect to pp collisions (I-AA) is computed. The per-trigger yield in Pb-Pb collisions on the away side is strongly suppressed to the level of I-AA approximate to 0.6 for p(T,assoc) > 3 GeV/c as expected from strong in-medium energy loss, while an enhancement develops at low p(T), assoc on both the near and away sides, reaching I-AA approximate to 1.8 and 2.7 respectively. These findings are in good agreement with previous ALICE measurements from two-particle correlations triggered by neutral pions (pi(0)-h) and charged hadrons (h-h) in Pb-Pb collisions at root s(NN) = 2.76 TeV. Moreover, the correlations with K-S(0) mesons and Lambda/(Lambda) over bar baryons as trigger particles are compared to those of inclusive charged hadrons. The results are compared with the predictions of Monte Carlo models.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/LM2018104" target="_blank" >LM2018104: Research Infrastructure for experiments at CERN</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

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

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Volume of the periodical

83

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

20

Pages from-to

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UT code for WoS article

001060591500002

EID of the result in the Scopus database

2-s2.0-85161820231