Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/77513
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Type: Journal article
Title: Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collitions at √(sNN) = 2.76 TeV with the ATLAS detector
Other Titles: Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collitions at root(sNN) = 2.76 TeV with the ATLAS detector
Author: Jackson, P.
White, M.
Citation: Physics Letters B, 2013; 719(4-5):220-241
Publisher: Elsevier Science BV
Issue Date: 2013
ISSN: 0370-2693
1873-2445
Contributor: Jackson, Paul Douglas
Statement of
Responsibility: 
ATLAS Collaboration
Abstract: Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead–lead collisions at √(sNN) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 μb⁻¹, ATLAS has measured jets with a calorimeter system over the pseudorapidity interval |η|<2.1|η|<2.1 and over the transverse momentum range 38<pT<210 GeV38<pT<210 GeV. Jets were reconstructed using the anti-ktkt algorithm with values for the distance parameter that determines the nominal jet radius of R=0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet “central-to-peripheral ratio,” RCPRCP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. RCPRCP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.
Keywords: LHC; ATLAS; Heavy ion; Jets
Description: ATLAS Collaboration Contributor: Paul Douglas Jackson of SLAC National Accelerator Laboratory, Stanford CA, United States of America.
Rights: © 2013 CERN. Published by Elsevier B.V. All rights reserved.
RMID: 0020126944
DOI: 10.1016/j.physletb.2013.01.024
Appears in Collections:Chemistry and Physics publications

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