Measurement of the production of neighbouring jets in lead-lead collisions at ?sNN=2.76 TeV with the ATLAS detector

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Erscheinungsjahr:
2015
Medientyp:
Text
Schlagworte:
  • 3106
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  • 3106
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Beschreibung:
  • This Letter presents measurements of correlated production of nearby jets in Pb+Pb collisions at root s(NN) = 2.76 TeV using the ATLAS detector at the Large Hadron Collider. The measurement was performed using 0.14 nb(-1)of data recorded in 2011. The production of correlated jet pairs was quantified using the rate, R-Delta R, of ``neighbouring{''} jets that accompany ``test{''} jets within a given range of angular distance, Delta R, in the pseudorapidity-azimuthal angle plane. The jets were measured in the ATLAS calorimeter and were reconstructed using the anti-ktalgorithm with radius parameters d = 0.2, 0.3, and 0.4. R-Delta R was measured in different Pb+Pbcollision centrality bins, characterized by the total transverse energy measured in the forward calorimeters. Acentrality dependence of R-Delta R is observed for all three jet radii with R-Delta R found to be lower in central collisions than in peripheral collisions. The ratios formed by the R-Delta R values in different centrality bins and the values in the 40-80\% centrality bin are presented. (C) 2015 CERN for the benefit of the ATLAS Collaboration. Published by Elsevier B.V.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/9ca51528-0c32-42af-8c4a-a5918b071de8