Details

Autor(en) / Beteiligte

• Aaboud, M
• Aad, G
• Abbott, B
• Abdallah, J
• Abdinov, O
• Abeloos, B
• Abidi, S. H

Titel

Measurement of quarkonium production in proton-lead and proton-proton collisions at [Formula omitted] with the ATLAS detector

Ist Teil von

• The European physical journal. C, Particles and fields, 2018-02, Vol.78 (3)

Ort / Verlag

Springer

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The modification of the production of [Formula omitted], [Formula omitted], and [Formula omitted] ( [Formula omitted]) in p+Pb collisions with respect to their production in pp collisions has been studied. The p+Pb and pp datasets used in this paper correspond to integrated luminosities of [Formula omitted] and [Formula omitted] respectively, collected in 2013 and 2015 by the ATLAS detector at the LHC, both at a centre-of-mass energy per nucleon pair of 5.02 TeV. The quarkonium states are reconstructed in the dimuon decay channel. The yields of [Formula omitted] and [Formula omitted] are separated into prompt and non-prompt sources. The measured quarkonium differential cross sections are presented as a function of rapidity and transverse momentum, as is the nuclear modification factor, [Formula omitted] for [Formula omitted] and [Formula omitted]. No significant modification of the [Formula omitted] production is observed while [Formula omitted] production is found to be suppressed at low transverse momentum in p+Pb collisions relative to pp collisions. The production of excited charmonium and bottomonium states is found to be suppressed relative to that of the ground states in central p+Pb collisions.