Charged-hadron suppression in Pb plus Pb and Xe plus Xe collisions measured with the ATLAS detector
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Dosyalar
Tarih
2019-02
Yazarlar
Dergi Başlığı
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The ATLAS detector at the LHC recorded 0.49 nb(-1) of Pb+Pb collisions and 25 of pp(-1) collisions, both at the center-of-mass energy 5.02 TeV per nucleon pair. Recently, ATLAS also recorded 30 mu b(-1) of Xe+Xe collisions at the center-of-mass energy 5.44 TeV, which provides a new opportunity to study the system-size dependence of the charged-hadron production in heavy-ion collisions. The large acceptance of the ATLAS detector allows to measure the spectra of charged hadrons in a wide range of pseudorapidity and transverse momentum. The nuclear modification factors R-AA are constructed as a ratio of the spectra measured in Pb+Pb or Xe+Xe collisions to that measured in pp collisions. The R-AA obtained in the two systems are presented for different centrality intervals and the results are discussed.
Açıklama
Anahtar Kelimeler
xenon-xenon collisions, lead-lead collisions, charged-hadron production, nuclear modification factor
Kaynak
NUCLEAR PHYSICS A
WoS Q Değeri
Q3
