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Title: Prompt and non-prompt J/ ? and ?(2 S) suppression at high transverse momentum in 5.02TeV Pb+Pb collisions with the ATLAS experiment
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions
matter effects
Issue Date: Sep-2018
Publisher: Springer New York LLC
Source: ATLAS collaboration. (2018). Prompt and non-prompt $$ J/\psi $$ and $$\psi (2\mathrm {S}) $$ ? (2S) suppression at high transverse momentum in $ $5.02~\mathrm {TeV} $ $5.02 TeV Pb+ Pb collisions with the ATLAS experiment. The European Physical Journal C, 78(9), 762.
Abstract: A measurement of J/ ? and ?(2 S) production is presented. It is based on a data sample from Pb+Pb collisions at sNN=5.02TeV and pp collisions at s=5.02TeV recorded by the ATLAS detector at the LHC in 2015, corresponding to an integrated luminosity of 0.42nb-1 and 25pb-1 in Pb+Pb and pp, respectively. The measurements of per-event yields, nuclear modification factors, and non-prompt fractions are performed in the dimuon decay channel for 9<pT??<40 GeV in dimuon transverse momentum, and - 2 < y? ?< 2 in rapidity. Strong suppression is found in Pb+Pb collisions for both prompt and non-prompt J/ ?, increasing with event centrality. The suppression of prompt ?(2 S) is observed to be stronger than that of J/ ?, while the suppression of non-prompt ?(2 S) is equal to that of the non-prompt J/ ? within uncertainties, consistent with the expectation that both arise from b-quarks propagating through the medium. Despite prompt and non-prompt J/ ? arising from different mechanisms, the dependence of their nuclear modification factors on centrality is found to be quite similar. © 2018, CERN for the benefit of the ATLAS collaboration.
ISSN: 14346044
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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