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Type: Journal article
Title: Measurement of the azimuthal angle dependence of inclusive jet yields in Pb+Pb collisions at √(s(NN))= 2.76 TeV with the ATLAS detector
Other Titles: Measurement of the azimuthal angle dependence of inclusive jet yields in Pb+Pb collisions at root(s(NN))= 2.76 TeV with the ATLAS detector
Author: Aad, G.
Abajyan, T.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
Abdinov, O.
Aben, R.
Abi, B.
Abolins, M.
AbouZeid, O.S.
Abramowicz, H.
Abreu, H.
Abulaiti, Y.
Acharya, B.S.
Adamczyk, L.
Adams, D.L.
Addy, T.N.
Adelman, J.
Adomeit, S.
Adye, T.
et al.
Citation: Physical Review Letters, 2013; 111(15):152301-1-152301-18
Publisher: American Physical Society
Issue Date: 2013
ISSN: 0031-9007
Statement of
G. Aad … P. Jackson … N. Soni … M. J. White … et al. (ATLAS collaboration)
Abstract: Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, Δφ, with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. ATLAS has measured the Δφ dependence of jet yields in 0.14 nb(-1) of √(s(NN))=2.76 TeV Pb+Pb collisions at the LHC for jet transverse momenta p(T)>45 GeV in different collision centrality bins using an underlying event subtraction procedure that accounts for elliptic flow. The variation of the jet yield with Δφ was characterized by the parameter, v(2)(jet), and the ratio of out-of-plane (Δφ~π/2) to in-plane (Δφ~0) yields. Nonzero v(2)(jet) values were measured in all centrality bins for p(T)<160 GeV. The jet yields are observed to vary by as much as 20% between in-plane and out-of-plane directions.
Keywords: ATLAS Collaboration
Rights: © 2013 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.
DOI: 10.1103/PhysRevLett.111.152301
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