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Measurement of charged-particle spectra in Pb+Pb collisions at (Formula presented.) = 2.76 TeV with the ATLAS detector at the LHC

The, ATLAS collaboration
•
Aad, G.
•
Abbott, B.
altro
Zwalinski, L.
2015
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
Charged-particle spectra obtained in Pb+Pb interactions at (Formula presented.) and pp interactions at (Formula presented.) with the ATLAS detector at the LHC are presented, using data with integrated luminosities of 0.15 nb−1 and 4.2 pb−1, respectively, in a wide transverse momentum (0.5 < pT< 150 GeV) and pseudorapidity (|η| < 2) range. For Pb+Pb collisions, the spectra are presented as a function of collision centrality, which is determined by the response of the forward calorimeters located on both sides of the interaction point. The nuclear modification factors RAA and RCP are presented in detail as a function of centrality, pT and η. They show a distinct pT-dependence with a pronounced minimum at about 7 GeV. Above 60 GeV, RAA is consistent with a plateau at a centrality-dependent value, within the uncertainties. The value is 0.55 ± 0.01(stat.) ± 0.04(syst.) in the most central collisions. The RAA distribution is consistent with flat |η| dependence over the whole transverse momentum range in all centrality classes.
DOI
10.1007/JHEP09(2015)050
WOS
WOS:000361614600001
Archivio
http://hdl.handle.net/11390/1097218
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84942319371
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942319371&partnerID=40&md5=2c7edac80d9f61fc2db4dc5befd03dec
Diritti
metadata only access
Soggetti
  • Heavy Ion

  • QCD

  • Nuclear and High Ener...

Scopus© citazioni
78
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
108
Data di acquisizione
Mar 12, 2024
Visualizzazioni
3
Data di acquisizione
Apr 19, 2024
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