Upsilon production and nuclear modification at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00547654" target="_blank" >RIV/68378271:_____/21:00547654 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/21:00547654 RIV/68407700:21340/21:00352595

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2021.136579" target="_blank" >https://doi.org/10.1016/j.physletb.2021.136579</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2021.136579" target="_blank" >10.1016/j.physletb.2021.136579</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Upsilon production and nuclear modification at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV

Popis výsledku v původním jazyce

The production of Upsilon mesons in Pb-Pb collisions at a centre-of-mass energy per nucleon pair root sNN = 5.02 TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5 < y < 4.0, as a function of rapidity, transverse momentum and collision centrality. The results show that the production of the Upsilon(1S) meson is suppressed by a factor of about three with respect to the production in proton-proton collisions. For the first time, a significant signal for the Upsilon(2S) meson is observed at forward rapidity, indicating a suppression stronger by about a factor 2-3 with respect to the ground state. The measurements are compared with transport, hydrodynamic, comover and statistical hadronisation model calculations.

Název v anglickém jazyce

Upsilon production and nuclear modification at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV

Popis výsledku anglicky

The production of Upsilon mesons in Pb-Pb collisions at a centre-of-mass energy per nucleon pair root sNN = 5.02 TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5 < y < 4.0, as a function of rapidity, transverse momentum and collision centrality. The results show that the production of the Upsilon(1S) meson is suppressed by a factor of about three with respect to the production in proton-proton collisions. For the first time, a significant signal for the Upsilon(2S) meson is observed at forward rapidity, indicating a suppression stronger by about a factor 2-3 with respect to the ground state. The measurements are compared with transport, hydrodynamic, comover and statistical hadronisation model calculations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field 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

2021

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

1873-2445

Svazek periodika

822

Číslo periodika v rámci svazku

NOV 10

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

136579

Kód UT WoS článku

000710431500019

EID výsledku v databázi Scopus

2-s2.0-85116414182