Measurement of beauty-strange meson production in Pb-Pb collisions at root sNN=5.02 TeV via non-prompt Ds+ mesons
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00372278" target="_blank" >RIV/68407700:21340/23:00372278 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2022.137561" target="_blank" >https://doi.org/10.1016/j.physletb.2022.137561</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2022.137561" target="_blank" >10.1016/j.physletb.2022.137561</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of beauty-strange meson production in Pb-Pb collisions at root sNN=5.02 TeV via non-prompt Ds+ mesons
Original language description
The production yields of non-prompt D-s(+) smesons, namely D-s(+) smesons from beauty-hadron decays, were measured for the first time as a function of the transverse momentum (p(T)) at midrapidity (|y| < 0.5) in central and semi-central Pb-Pb collisions at a centre-of-mass energy per nucleon pair root s(NN)= 5.02TeVwith the ALICE experiment at the LHC. The D-s(+) smesons and their charge conjugates were reconstructed from the hadronic decay channel D-s(+) -> phi pi+, with phi -> K- K+, in the 4 < pT< 36GeV/cand 2 < pT< 24GeV/cintervals for the 0-10% and 30-50% centrality classes, respectively. The measured yields of non-prompt D-s(+) smesons are compared to those of prompt D-s(+) sand non-prompt D-0 mesons by calculating the ratios of the production yields in Pb-Pb collisions and the nuclear modification factor R-AA. The ratio between the R-AA of non-prompt D-s(+) sand prompt D-s(+) smesons, and that between the R-AA of non-prompt D-s(+) sand non-prompt D-0 mesons in central Pb-Pb collisions are found to be on average higher than unity in the 4 < p(T) < 12GeV/c interval with a statistical significance of about 1.6 sigma and 1.7 sigma, respectively. The measured R-AA ratios are compared with the predictions of theoretical models of heavy-quark transport in a hydrodynamically expanding QGP that incorporate hadronisation via quark recombination. (c) 2022 The Author(s). 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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Classification
Type
J<sub>imp</sub> - 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
Result continuities
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)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
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
16
Pages from-to
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UT code for WoS article
001144514600001
EID of the result in the Scopus database
2-s2.0-85173992536