Fluctuations and asymmetric jet events in PbPb collisions at the LHC

Recent LHC results concerning full jet-quenching in PbPb collisions have been presented in terms of a jet asymmetry parameter, measuring the imbalance between the transverse momenta of leading and subleading jets. We examine the potential sensitivity of this distribution to fluctuations from the hea...

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Detalles Bibliográficos
Autores principales: Cacciari, Matteo, Salam, Gavin P, Soyez, Gregory
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-011-1692-4
http://cds.cern.ch/record/1322632
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author Cacciari, Matteo
Salam, Gavin P
Soyez, Gregory
author_facet Cacciari, Matteo
Salam, Gavin P
Soyez, Gregory
author_sort Cacciari, Matteo
collection CERN
description Recent LHC results concerning full jet-quenching in PbPb collisions have been presented in terms of a jet asymmetry parameter, measuring the imbalance between the transverse momenta of leading and subleading jets. We examine the potential sensitivity of this distribution to fluctuations from the heavy-ion background. Our results suggest that a detailed estimate of the true fluctuations would be of benefit in extracting quantitative information about jet quenching. We also find that the apparent impact of fluctuations on the jet asymmetry distribution can depend significantly on the choice of low-pt threshold used for the simulation of the hard pp events.
id cern-1322632
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13226322019-09-30T06:29:59Zdoi:10.1140/epjc/s10052-011-1692-4http://cds.cern.ch/record/1322632engCacciari, MatteoSalam, Gavin PSoyez, GregoryFluctuations and asymmetric jet events in PbPb collisions at the LHCParticle Physics - PhenomenologyRecent LHC results concerning full jet-quenching in PbPb collisions have been presented in terms of a jet asymmetry parameter, measuring the imbalance between the transverse momenta of leading and subleading jets. We examine the potential sensitivity of this distribution to fluctuations from the heavy-ion background. Our results suggest that a detailed estimate of the true fluctuations would be of benefit in extracting quantitative information about jet quenching. We also find that the apparent impact of fluctuations on the jet asymmetry distribution can depend significantly on the choice of low-pt threshold used for the simulation of the hard pp events.arXiv:1101.2878oai:cds.cern.ch:13226322011-01-17
spellingShingle Particle Physics - Phenomenology
Cacciari, Matteo
Salam, Gavin P
Soyez, Gregory
Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title_full Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title_fullStr Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title_full_unstemmed Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title_short Fluctuations and asymmetric jet events in PbPb collisions at the LHC
title_sort fluctuations and asymmetric jet events in pbpb collisions at the lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-011-1692-4
http://cds.cern.ch/record/1322632
work_keys_str_mv AT cacciarimatteo fluctuationsandasymmetricjeteventsinpbpbcollisionsatthelhc
AT salamgavinp fluctuationsandasymmetricjeteventsinpbpbcollisionsatthelhc
AT soyezgregory fluctuationsandasymmetricjeteventsinpbpbcollisionsatthelhc

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