Centrality dependence of charged jet production in p–Pb collisions at √sNN = 5.02 TeV

Adam, J. and Antičić, Tome and Erhardt, Filip and Planinić, Mirko and Poljak, Nikola and Simatović, Goran and Utrobičić, Antonija and Zyzak, M. (ALICE Collaboration) (2016) Centrality dependence of charged jet production in p–Pb collisions at √sNN = 5.02 TeV. European Physical Journal C, 76 (5). pp. 271-16. ISSN 1434-6044

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Abstract

Measurements of charged jet production as a function of centrality are presented for p–Pb collisions recorded at √sNN = 5.02 TeV with the ALICE detector. Centrality classes are determined via the energy deposit in neutron calorimeters at zero degree, close to the beam direction, to minimise dynamical biases of the selection. The corresponding number of participants or binary nucleon–nucleon collisions is determined based on the particle production in the Pb-going rapidity region. Jets have been reconstructed in the central rapidity region from charged particles with the anti-kT algorithm for resolution parameters R = 0.2 and R = 0.4 in the transverse momentum range 20 to 120 GeV/c. The reconstructed jet momentum and yields have been corrected for detector effects and underlying-event background. In the five centrality bins considered, the charged jet production in p–Pb collisions is consistent with the production expected from binary scaling from pp collisions. The ratio of jet yields reconstructed with the two different resolution parameters is also independent of the centrality selection, demonstrating the absence of major modifications of the radial jet structure in the reported centrality classes.

Item Type: Article
Date: May 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: © CERN for the benefit of the ALICE collaboration 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. Received: 14 March 2016. Accepted: 24 April 2016.
Divisions: Faculty of Science > Department of Physics
Publisher: Springer
Depositing User: Nikola Poljak
Date Deposited: 27 May 2016 06:45
Last Modified: 27 May 2016 10:40
URI: http://digre.pmf.unizg.hr/id/eprint/4854

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