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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Pseudorapidity distributions of charged hadrons in lead-lead collisions at √SNN=5.36 TeV
Original language description
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| < 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| < 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.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
e-ISSN
1873-2445
Volume of the periodical
861
Issue of the periodical within the volume
Winter 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
25
Pages from-to
139279
UT code for WoS article
001426298700001
EID of the result in the Scopus database
2-s2.0-85216302406

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