Upsilon suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00503663" target="_blank" >RIV/61389005:_____/19:00503663 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/19:00503663 RIV/68407700:21340/19:00333330
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2018.11.067" target="_blank" >https://doi.org/10.1016/j.physletb.2018.11.067</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.11.067" target="_blank" >10.1016/j.physletb.2018.11.067</a>

Result language
angličtina
Original language name
Upsilon suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV
Original language description
Inclusive gamma(1S) and gamma(2S) production have been measured in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair root s(NN) = 5.02 TeV, using the ALICE detector at the CERN LHC. The gamma mesons are reconstructed in the centre-of-mass rapidity interval 2.5 < y < 4 and in the transverse momentum range p(T) < 15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive gamma(1S) nuclear modification factor R-AA as a function of collision centrality, transverse momentum and rapidity. The gamma(1S) and gamma(2S) R-AA, integrated over the centrality range 0-90%, are 0.37 +/- 0.02(stat) +/- 0.03(syst) and 0.10 +/- 0.04(stat) +/- 0.02(syst), respectively, leading to a ratio R-AA(gamma(2S))/R-AA(gamma(1S))of 0.28 +/- 0.12(stat) +/- 0.06(syst). The observed gamma(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity.
Czech name
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Czech description
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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
10304 - Nuclear physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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