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

Bzdak, Adam; Skokov, Vladimir; Bathe, Stefan

doi:10.1103/PhysRevC.93.044901

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

Journal Article · Fri Apr 08 00:00:00 EDT 2016 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.93.044901· OSTI ID:1260150

Bzdak, Adam ^[1]; Skokov, Vladimir ^[2]; Bathe, Stefan ^[3]

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
Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; Western Michigan Univ., Kalamazoo MI (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; City Univ. (CUNY), NY (United States). Buruch College

The recently measured centrality dependence of high energy jets in proton-lead collisions at the CERN Large Hadron Collider (LHC) is investigated. 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. We further extract the suppression factor as a function of jet energy and test our conjecture using available RpA data for various centralities.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: SC0012704; SC0007017; DEC-2013/09/B/ST2/00497; DEC-2014/15/B/ST2/00175; AC02-05CH11231

OSTI ID:: 1260150

Alternate ID(s):: OSTI ID: 1246518; OSTI ID: 1423596

Report Number(s):: BNL-112276-2016-JA; PRVCAN; R&D Project: PO-3

Journal Information:: Physical Review C, Vol. 93, Issue 4; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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