Pseudorapidity distributions of charged hadrons in lead-lead collisions at √SNN=5.36 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510711" target="_blank" >RIV/00216208:11320/25:10510711 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=BgXBTB.oVu" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=BgXBTB.oVu</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2025.139279" target="_blank" >10.1016/j.physletb.2025.139279</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pseudorapidity distributions of charged hadrons in lead-lead collisions at √SNN=5.36 TeV

Popis výsledku v původním jazyce

The pseudorapidity (eta) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of root s(NN) = 5.36 TeV for collisions of lead-lead ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of 0.30 +/- 0.03 mu b(-1). Using the CMS silicon pixel detector, the yields of primary charged hadrons produced in the range |eta| &lt; 2.6 are reported. The evolution of the midrapidity particle density as a function of collision centrality is also reported. In the 5% most central collisions, the charged-hadron eta density in the range |eta| &lt; 0.5 is found to be 2032 +/- 91 (syst), with negligible statistical uncertainty. This result is consistent with an extrapolation from nucleus-nucleus collision data at lower center-of-mass energies. Comparisons are made to various Monte Carlo event generators and to previous measurements of lead-lead and xenon-xenon collisions at similar collision energies. These new data detail the dependence of particle production on the collision energy, initial collision geometry, and the size of the colliding nuclei.

Název v anglickém jazyce

Pseudorapidity distributions of charged hadrons in lead-lead collisions at √SNN=5.36 TeV

Popis výsledku anglicky

The pseudorapidity (eta) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of root s(NN) = 5.36 TeV for collisions of lead-lead ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of 0.30 +/- 0.03 mu b(-1). Using the CMS silicon pixel detector, the yields of primary charged hadrons produced in the range |eta| &lt; 2.6 are reported. The evolution of the midrapidity particle density as a function of collision centrality is also reported. In the 5% most central collisions, the charged-hadron eta density in the range |eta| &lt; 0.5 is found to be 2032 +/- 91 (syst), with negligible statistical uncertainty. This result is consistent with an extrapolation from nucleus-nucleus collision data at lower center-of-mass energies. Comparisons are made to various Monte Carlo event generators and to previous measurements of lead-lead and xenon-xenon collisions at similar collision energies. These new data detail the dependence of particle production on the collision energy, initial collision geometry, and the size of the colliding nuclei.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

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

2025

Kód důvěrnosti údajů

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

Název periodika

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

861

Číslo periodika v rámci svazku

Winter 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

25

Strana od-do

139279

Kód UT WoS článku

001426298700001

EID výsledku v databázi Scopus

2-s2.0-85216302406