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|Title:||Measurement of the production of neighbouring jets in lead-lead collisions at √sNN=2.76 TeV with the ATLAS detector|
|Other Titles:||Measurement of the production of neighbouring jets in lead-lead collisions at root sNN=2.76 TeV with the ATLAS detector|
Abdel Khalek, S.
|Citation:||Physics Letters B, 2015; 751:376-395|
|G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)|
|Abstract:||This Letter presents measurements of correlated production of nearby jets in Pb+Pb collisions at √sNN=2.76 TeV using the ATLAS detector at the Large Hadron Collider. The measurement was performed using 0.14 nb−10.14 nb⁻¹ of data recorded in 2011. The production of correlated jet pairs was quantified using the rate, RΔRRΔR, of “neighbouring” jets that accompany “test” jets within a given range of angular distance, ΔR , in the pseudorapidity–azimuthal angle plane. The jets were measured in the ATLAS calorimeter and were reconstructed using the anti-ktkt algorithm with radius parameters d=0.2d=0.2, 0.3, and 0.4. RΔRRΔR was measured in different Pb+Pb collision centrality bins, characterized by the total transverse energy measured in the forward calorimeters. A centrality dependence of RΔRRΔR is observed for all three jet radii with RΔRRΔR found to be lower in central collisions than in peripheral collisions. The ratios formed by the RΔRRΔR values in different centrality bins and the values in the 40–80% centrality bin are presented.|
|Rights:||© 2015 CERN for the beneﬁt of the ATLAS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.|
|Appears in Collections:||Physics publications|
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