Adam , J , Brucken , E J , Chang , B , Kim , D J , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Snellman , T W , Trzaska , W H & The ALICE Collaboration 2016 , ' Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions ' Physics Letters B , vol. 753 , pp. 511-525 . DOI: 10.1016/j.physletb.2015.12.047
Title: | Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions |
Author: | Adam, J.; Adamova, D.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahmmed, Z.; Ahn, S. U.; Aiola, S.; Akindinov, A.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alexandre, D.; Molina, R. Alfaro; Alici, A.; Alkin, A.; Almaraz, J. R. M.; Alme, J.; Alt, T.; Altinpinar, S.; Altsybeev, I.; Prado, C. Alves Garcia; Andrei, C.; Andronic, A.; Anguelov, V.; Anielski, J.; Anticic, T.; Antinori, F.; Antonioli, R.; Aphecetche, L.; Appelshaeuser, H.; Arcelli, S.; Arnaldi, R.; Arnold, O. W.; Arsene, I. C.; Arslandok, M.; Audurier, B.; Augustinus, A.; Averbeck, R.; Azmi, M. D.; Brucken, E. J.; Chang, B.; Kim, D. J.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S. S.; Snellman, T. W.; Trzaska, W. H. |
Contributor: | University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) |
Date: | 2016-02-10 |
Number of pages: | 15 |
Belongs to series: | Physics Letters B |
ISSN: | 0370-2693 |
URI: | http://hdl.handle.net/10138/160986 |
Abstract: | We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Subject: |
QUARK-GLUON PLASMA
RELATIVISTIC NUCLEAR COLLISIONS RADIATIVE ENERGY-LOSS HEAVY-ION COLLISIONS TRANSVERSE-MOMENTUM ROOT-S-NN=2.76 TEV FLOW DISTRIBUTIONS SUPPRESSION DEPENDENCE 114 Physical sciences |
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