Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102732
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Type: Journal article
Title: Measurement of differential J/ψ production cross sections and forward-backward ratios in p + Pb collisions with the ATLAS detector
Other Titles: Measurement of differential J/psi production cross sections and forward-backward ratios in p + Pb collisions with the ATLAS detector
Author: Aad, G.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
Abdinov, O.
Aben, R.
Abi, B.
Abolins, M.
Abouzeid, O.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.
Adamczyk, L.
Adams, D.
Adelman, J.
Adomeit, S.
Adye, T.
Agatonovic-Jovin, T.
et al.
Citation: Physical Review C: Nuclear Physics, 2015; 92(3):034904-1-034904-23
Publisher: American Physical Society
Issue Date: 2015
ISSN: 0556-2813
1089-490X
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: Measurements of differential cross sections for J/ψ production in p + Pb collisions at √sNN = 5.02 TeV at the CERN Large Hadron Collider with the ATLAS detector are presented. The data set used corresponds to an integrated luminosity of 28.1 nb⁻¹. The J/ψ mesons are reconstructed in the dimuon decay channel over the transverse momentum range 8 < pT < 30 GeV and over the center-of-mass rapidity range −2.87 < y ∗ < 1.94. Prompt J/ψ are separated from J/ψ resulting from b-hadron decays through an analysis of the distance between the J/ψ decay vertex and the event primary vertex. The differential cross section for production of nonprompt J/ψ is compared to a FONLL calculation that does not include nuclear effects. Forward-backward production ratios are presented and compared to theoretical predictions. These results complement previously published results by covering a region of higher transverse momentum and more central rapidity. They thus constrain the kinematic dependence of nuclear modifications of charmonium and b-quark production in p + Pb collisions.
Rights: ©2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
RMID: 0030036925
DOI: 10.1103/PhysRevC.92.034904
Appears in Collections:Physics publications

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