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Title: Centrality dependence of high energy jets in p + Pb collisions at energies available at the CERN Large Hadron Collider

We investigate the recently measured centrality dependence of high energy jets in proton-lead collisions at the LHC. Here, we hypothesize that events with jets of very high energy (a few hundred GeV) are characterized by a suppressed number of soft particles, thus shifting these events into more peripheral bins. This naturally results in the suppression (enhancement) of the nuclear modification factor, R pA, in central (peripheral) collisions. Our calculations suggest that a moderate suppression of the order of 20%, for 10 3 GeV jets, can quantitatively reproduce the experimental data. Finally, we further extract the suppression factor as a function of jet energy and test our conjecture using available R pA data for various centralities.
Authors:
 [1] ;  [2] ;  [3]
  1. AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics and Applied Computer Science; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; Western Michigan Univ., Kalamazoo MI (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; City Univ. (CUNY), NY (United States). Buruch College
Publication Date:
Report Number(s):
BNL-112276-2016-JA
Journal ID: ISSN 2469-9985; PRVCAN; R&D Project: PO-3
Grant/Contract Number:
SC0012704; SC0007017; DEC-2013/09/B/ST2/00497; DEC-2014/15/B/ST2/00175; AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Riken BNL Research Center
OSTI Identifier:
1260150
Alternate Identifier(s):
OSTI ID: 1246518; OSTI ID: 1423596

Bzdak, Adam, Skokov, Vladimir, and Bathe, Stefan. Centrality dependence of high energy jets in p+Pb collisions at energies available at the CERN Large Hadron Collider. United States: N. p., Web. doi:10.1103/PhysRevC.93.044901.
Bzdak, Adam, Skokov, Vladimir, & Bathe, Stefan. Centrality dependence of high energy jets in p+Pb collisions at energies available at the CERN Large Hadron Collider. United States. doi:10.1103/PhysRevC.93.044901.
Bzdak, Adam, Skokov, Vladimir, and Bathe, Stefan. 2016. "Centrality dependence of high energy jets in p+Pb collisions at energies available at the CERN Large Hadron Collider". United States. doi:10.1103/PhysRevC.93.044901. https://www.osti.gov/servlets/purl/1260150.
@article{osti_1260150,
title = {Centrality dependence of high energy jets in p+Pb collisions at energies available at the CERN Large Hadron Collider},
author = {Bzdak, Adam and Skokov, Vladimir and Bathe, Stefan},
abstractNote = {We investigate the recently measured centrality dependence of high energy jets in proton-lead collisions at the LHC. Here, we hypothesize that events with jets of very high energy (a few hundred GeV) are characterized by a suppressed number of soft particles, thus shifting these events into more peripheral bins. This naturally results in the suppression (enhancement) of the nuclear modification factor, RpA, in central (peripheral) collisions. Our calculations suggest that a moderate suppression of the order of 20%, for 103 GeV jets, can quantitatively reproduce the experimental data. Finally, we further extract the suppression factor as a function of jet energy and test our conjecture using available RpA data for various centralities.},
doi = {10.1103/PhysRevC.93.044901},
journal = {Physical Review C},
number = 4,
volume = 93,
place = {United States},
year = {2016},
month = {4}
}