Studies of J/ψ production at forward rapidity in Pb–Pb collisions at root sNN = 5.02 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00345781" target="_blank" >RIV/68407700:21340/20:00345781 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP02(2020)041" target="_blank" >https://doi.org/10.1007/JHEP02(2020)041</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP02(2020)041" target="_blank" >10.1007/JHEP02(2020)041</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Studies of J/ψ production at forward rapidity in Pb–Pb collisions at root sNN = 5.02 TeV

Popis výsledku v původním jazyce

The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair s N N s NN ​ ​ = 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (R A A AA ​ ). The R A A AA ​ at s N N s NN ​ ​ = 5.02 TeV is presented and compared with previous measurements at s N N s NN ​ ​ = 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.

Název v anglickém jazyce

Studies of J/ψ production at forward rapidity in Pb–Pb collisions at root sNN = 5.02 TeV

Popis výsledku anglicky

The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair s N N s NN ​ ​ = 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (R A A AA ​ ). The R A A AA ​ at s N N s NN ​ ​ = 5.02 TeV is presented and compared with previous measurements at s N N s NN ​ ​ = 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF HIGH ENERGY PHYSICS

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2020

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

29

Strana od-do

—

Kód UT WoS článku

000515812400001

EID výsledku v databázi Scopus

2-s2.0-85079422532