Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p-Pb collisions at root sNN=8.16 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00370371" target="_blank" >RIV/68407700:21340/23:00370371 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.physletb.2023.137782" target="_blank" >https://doi.org/10.1016/j.physletb.2023.137782</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.137782" target="_blank" >10.1016/j.physletb.2023.137782</a>

Result language

angličtina

Original language name

Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p-Pb collisions at root sNN=8.16 TeV

Original language description

The study of the azimuthal anisotropy of inclusive muons produced in p-Pb collisions at root sNN = 8.16 TeV, using the ALICE detector at the LHC is reported. The measurement of the second-order Fourier coefficient of the particle azimuthal distribution, v2, is performed as a function of transverse momentum pT in the 0-20% high-multiplicity interval at both forward (2.03 < yCMS < 3.53) and backward (-4.46 < yCMS < -2.96) rapidities over a wide pT range, 0.5 < pT 10 GeV/c, in which a dominant contribution of muons from heavy-flavour hadron decays is expected at pT 2 GeV/c. The v2 coefficient of inclusive muons is extracted using two different techniques, namely two-particle cumulants, used for the first time for heavy-flavour measurements, and forward-central two-particle correlations. Both techniques give compatible results. A positive v2 is measured at both forward and backward rapidities with a significance larger than 4.7<sigma> and 7.6 sigma, respectively, in the interval 2 < pT < 6 GeV/c. Comparisons with previous measurements in p-Pb collisions at root sNN = 5.02 TeV, and with AMPT and CGC-based theoretical calculations are discussed. The findings impose new constraints on the theoretical interpretations of the origin of the collective behaviour in small collision systems. (c) 2023 European Organization for Nuclear Research. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

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

2023

Confidentiality

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

Name of the periodical

Physics Letters B

ISSN

0370-2693

e-ISSN

1873-2445

Volume of the periodical

846

Issue of the periodical within the volume

Nov

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

20

Pages from-to

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UT code for WoS article

001088286800001

EID of the result in the Scopus database

2-s2.0-85172706094