Charged-hadron production in pp, p+Pb, Pb+Pb, and Xe+Xe collisions at √s.sub.NN./sub. = 5 TeV with the ATLAS detector at the LHC

0576845 - FZÚ 2024 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abeling, K. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2877 autorů
Charged-hadron production in pp, p+Pb, Pb+Pb, and Xe+Xe collisions at √s_NN = 5 TeV with the ATLAS detector at the LHC.
Journal of High Energy Physics. Roč. 2023, č. 7 (2023), č. článku 074. ISSN 1029-8479. E-ISSN 1029-8479
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: Heavy Ion Experiments * pp: scattering * p nucleus: interaction
Obor OECD: Particles and field physics
Impakt faktor: 5.4, rok: 2022
Způsob publikování: Open access

This paper presents measurements of charged-hadron spectra obtained in pp, p+Pb, and Pb+Pb collisions at ss ​ or sNNsNN​ ​ = 5.02 TeV, and in Xe+Xe collisions at sNNsNN​ ​ = 5.44 TeV. The data recorded by the ATLAS detector at the LHC have total integrated luminosities of 25 pb−1−1, 28 nb−1−1, 0.50 nb−1−1, and 3 μb−1−1, respectively. The nuclear modification factors RpPbpPb​ and RAAAA​ are obtained by comparing the spectra in heavy-ion and pp collisions in a wide range of charged-particle transverse momenta and pseudorapidity. The nuclear modification factor RpPbpPb​ shows a moderate enhancement above unity with a maximum at pTT​ ≈ 3 GeV, the enhancement is stronger in the Pb-going direction. The nuclear modification factors in both Pb+Pb and Xe+Xe collisions feature a significant, centrality-dependent suppression. They show a similar distinct pTT​-dependence with a local maximum at pTT​ ≈ 2 GeV and a local minimum at pTT​ ≈ 7 GeV.
Trvalý link: https://hdl.handle.net/11104/0346241