Measurement of inclusive J/psi suppression in Au plus Au collisions at root s(NN)=200 GeV through the dimuon channel at STAR

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00509907" target="_blank" >RIV/61389005:_____/19:00509907 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/19:00337236

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2019.134917" target="_blank" >https://doi.org/10.1016/j.physletb.2019.134917</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2019.134917" target="_blank" >10.1016/j.physletb.2019.134917</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of inclusive J/psi suppression in Au plus Au collisions at root s(NN)=200 GeV through the dimuon channel at STAR

Popis výsledku v původním jazyce

J/psi suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/psi production at mid-rapidity through the dimuon decay channel in Au+Au collisions at root s(NN) = 200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/psi yields are measured in a wide transverse momentum (p(T)) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/psi yield is suppressed by a factor of approximately 3 for p(T) > 5 GeV/c relative to that in p + p collisions scaled by the number of binary nucleon-nucleon collisions. The J/psi nuclear modification factor displays little dependence on p(T) in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/psi mesons in the QGP.(

Název v anglickém jazyce

Measurement of inclusive J/psi suppression in Au plus Au collisions at root s(NN)=200 GeV through the dimuon channel at STAR

Popis výsledku anglicky

J/psi suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/psi production at mid-rapidity through the dimuon decay channel in Au+Au collisions at root s(NN) = 200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/psi yields are measured in a wide transverse momentum (p(T)) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/psi yield is suppressed by a factor of approximately 3 for p(T) > 5 GeV/c relative to that in p + p collisions scaled by the number of binary nucleon-nucleon collisions. The J/psi nuclear modification factor displays little dependence on p(T) in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/psi mesons in the QGP.(

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

—

Svazek periodika

797

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

134917

Kód UT WoS článku

000488071200034

EID výsledku v databázi Scopus

2-s2.0-85072158488