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Title: Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at s N N = 200 GeV

Abstract

Jet production rates are measured in p+p and d+Au collisions at $$\sqrt{sNN}$$=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R = 0.3 anti-kt algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multi-wire proportional chambers, and the jet transverse momentum (pT ) spectra are corrected for the detector response. Spectra are reported for jets with 12 < pT < 50 GeV/c, within a pseudorapidity acceptance of |η|< 0.3. The nuclear-modification factor (RdAu) values for 0%-100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected RdAu values and central-to-peripheral ratios (RCP) show large, pT -dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.

Authors:
 [1]
  1. Univ. of Colorado, Boulder, CO (United States).et al
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Org.:
PHENIX Collaboration
OSTI Identifier:
1324119
Alternate Identifier(s):
OSTI ID: 1243153; OSTI ID: 1335447
Report Number(s):
BNL-112148-2016-JA
Journal ID: ISSN 0031-9007; PRLTAO; KB0201022; ERKBP09
Grant/Contract Number:  
AC05-00OR22725; SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 116; Journal Issue: 12; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; jet-production; collisions; Relativistic Heavy Ion Collider

Citation Formats

Adare, A. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sNN=200 GeV. United States: N. p., 2016. Web. doi:10.1103/PhysRevLett.116.122301.
Adare, A. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sNN=200 GeV. United States. https://doi.org/10.1103/PhysRevLett.116.122301
Adare, A. Thu . "Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sNN=200 GeV". United States. https://doi.org/10.1103/PhysRevLett.116.122301. https://www.osti.gov/servlets/purl/1324119.
@article{osti_1324119,
title = {Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sNN=200 GeV},
author = {Adare, A.},
abstractNote = {Jet production rates are measured in p+p and d+Au collisions at $\sqrt{sNN}$=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R = 0.3 anti-kt algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multi-wire proportional chambers, and the jet transverse momentum (pT ) spectra are corrected for the detector response. Spectra are reported for jets with 12 < pT < 50 GeV/c, within a pseudorapidity acceptance of |η|< 0.3. The nuclear-modification factor (RdAu) values for 0%-100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected RdAu values and central-to-peripheral ratios (RCP) show large, pT -dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.},
doi = {10.1103/PhysRevLett.116.122301},
journal = {Physical Review Letters},
number = 12,
volume = 116,
place = {United States},
year = {Thu Mar 24 00:00:00 EDT 2016},
month = {Thu Mar 24 00:00:00 EDT 2016}
}

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