Investigating strangeness enhancement in jet and medium via φ(1020) production in p-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%2F24%3A00380847" target="_blank" >RIV/68407700:21340/24:00380847 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1103/PhysRevC.110.064912" target="_blank" >https://doi.org/10.1103/PhysRevC.110.064912</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.110.064912" target="_blank" >10.1103/PhysRevC.110.064912</a>

Result language

angličtina

Original language name

Investigating strangeness enhancement in jet and medium via φ(1020) production in p-Pb collisions at root sNN=5.02 TeV

Original language description

This work aims to differentiate strangeness produced from hard processes (jetlike) and softer processes (underlying event) by measuring the angular correlation between a high-momentum trigger hadron (h) acting as a jet proxy and a produced strange hadron [f(1020) meson]. Measuring h-phi correlations at midrapidity in p-Pb collisions at root s(NN) = 5.02 TeV as a function of event multiplicity provides insight into the microscopic origin of strangeness enhancement in small collision systems. The jetlike and the underlying-event-like strangeness production are investigated as a function of event multiplicity. They are also compared between a lower and higher momentum region. The evolutions of the per-trigger yields within the near-side (aligned with the trigger hadron) and away-side (in the opposite direction of the trigger hadron) jets are studied separately, allowing for the characterization of two distinct jetlike production regimes. Furthermore, the h-phi correlations within the underlying event give access to a production regime dominated by soft production processes, which can be compared directly to the in-jet production. Comparisons between h-phi and dihadron correlations show that the observed strangeness enhancement is largely driven by the underlying event, where the phi/h ratio is significantly larger than within the jet regions. As multiplicity increases, the fraction of the total phi(1020) yield coming from jets decreases compared to the underlying event production, leading to high-multiplicity events being dominated by the increased strangeness production from the underlying event.

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/LM2023040" target="_blank" >LM2023040: Research infrastructure for experiments at CERN</a><br>

Continuities

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

Publication year

2024

Confidentiality

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

Name of the periodical

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Volume of the periodical

110

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

18

Pages from-to

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UT code for WoS article

001389558100001

EID of the result in the Scopus database

2-s2.0-85213991470