Prompt and non-prompt J/ψ production at midrapidity in Pb-Pb collisions at √sNN=5.02 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00584752" target="_blank" >RIV/61389005:_____/24:00584752 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/24:00584752

Result on the web

<a href="https://doi.org/10.1007/JHEP02(2024)066" target="_blank" >https://doi.org/10.1007/JHEP02(2024)066</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP02(2024)066" target="_blank" >10.1007/JHEP02(2024)066</a>

Result language

angličtina

Original language name

Prompt and non-prompt J/ψ production at midrapidity in Pb-Pb collisions at √sNN=5.02 TeV

Original language description

The transverse momentum (p(T)) and centrality dependence of the nuclear modification factor R-AA of prompt and non-prompt J/psi, the latter originating from the weak decays of beauty hadrons, have been measured by the ALICE collaboration in Pb-Pb collisions at root s(NN) = 5.02TeV. The measurements are carried out through the e(+)e(-) decay channel at midrapidity (vertical bar y vertical bar < 0.9) in the transverse momentum region 1.5 < p(T) < 10 GeV/c. Both prompt and non-prompt J/psi measurements indicate a significant suppression for p(T) > 5 GeV/c, which becomes stronger with increasing collision centrality. The results are consistent with similar LHC measurements in the overlapping pT intervals, and cover the kinematic region down to p(T) = 1.5 GeV/c at midrapidity, not accessible by other LHC experiments. The suppression of prompt J/psi in central and semicentral collisions exhibits a decreasing trend towards lower transverse momentum, described within uncertainties by models implementing J/psi production from recombination of c and (c) over bar quarks produced independently in different partonic scatterings. At high transverse momentum, transport models including quarkonium dissociation are able to describe the suppression for prompt J/psi. For non-prompt J/psi, the suppression predicted by models including both collisional and radiative processes for the computation of the beauty-quark energy loss inside the quark-gluon plasma is consistent with measurements within uncertainties.

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

10304 - Nuclear physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Volume of the periodical

2024

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

40

Pages from-to

066

UT code for WoS article

001162274600001

EID of the result in the Scopus database

2-s2.0-85194473837