J/Psi 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_____%2F17%3A00474054" target="_blank" >RIV/61389005:_____/17:00474054 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/17:00474054 RIV/68407700:21340/17:00318482

Result on the web

<a href="http://dx.doi.org/10.1016/j.physletb.2016.12.064" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2016.12.064</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2016.12.064" target="_blank" >10.1016/j.physletb.2016.12.064</a>

Result language

angličtina

Original language name

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

Original language description

The inclusive J/Psi production has been studied in Pb-Pb and pp collisions at the centre-of-mass energy per nucleon pair root sNN= 5.02TeV, using the ALICE detector at the CERN LHC. The J/Psi meson is reconstructed, in the centre-of-mass rapidity interval 2.5 < y < 4and in the transverse- momentum range p(T)< 12GeV/c, via its decay to a muon pair. In this Letter, we present results on the inclusive J/Psi cross section in pp collisions at root s= 5.02TeV and on the nuclear modification factor R-AA. The latter is presented as a function of the centrality of the collision and, for central collisions, as a function of the transverse momentum p(T) of the J/Psi. The measured R-AA values indicate a suppression of the J/Psi in nuclear collisions and are then compared to our previous results obtained in Pb-Pb collisions at root sNN= 2.76TeV. The ratio of the R-AA values at the two energies is also computed and compared to calculations of statistical and dynamical models. The numerical value of the ratio for central events (0-10% centrality) is 1.17 +/- 0.04( stat)+/- 0.20(syst). In central events, as a function of p(T), a slight increase of R-AA with collision energy is visible in the region 2 < p(T)< 6GeV/c. Theoretical calculations qualitatively describe the 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

<a href="/en/project/LG15052" target="_blank" >LG15052: Investigation of the Microworld using the CERN Infrastructure</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

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

—

Volume of the periodical

766

Issue of the periodical within the volume

MAR

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

212-224

UT code for WoS article

000396438300031

EID of the result in the Scopus database

2-s2.0-85010002500