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Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions

Quarkonia have been studied in different collision system and energy in order to understand the effects of the hot and dense medium created in heavy-ion collisions. CMS is well suited to measure quarkonia decays to muons given the muon identification and charged particle tracking capability. We repo...

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Autor principal: Silvestre, Catherine
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1088/0954-3899/38/12/124033
http://cds.cern.ch/record/1377753
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author Silvestre, Catherine
author_facet Silvestre, Catherine
author_sort Silvestre, Catherine
collection CERN
description Quarkonia have been studied in different collision system and energy in order to understand the effects of the hot and dense medium created in heavy-ion collisions. CMS is well suited to measure quarkonia decays to muons given the muon identification and charged particle tracking capability. We report here prompt, non-prompt J/\psi, and \Upsilon\ production measured by the CMS experiment in pp collisions at \sqrt{s}=7 TeV. In addition, the J/\psi\ and \Upsilon\ production in PbPb at \sqrt{s_{NN}}=2.76 TeV and pp collisions at the same per nucleon energy are measured and compared. Prompt and non-prompt J/\psi\ contributions are separated for the first time in heavy-ion collisions, as is the ground from the excited states in the \Upsilon\ family. Suppression in PbPb at \sqrt{s_{NN}}=2.76 TeV is quantified for prompt J/\psi, B->J/\psi, and \Upsilon(1S), as well as the relative suppression of \Upsilon(2S+3S) compared to \Upsilon(1S).
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13777532023-03-17T03:35:53Zdoi:10.1088/0954-3899/38/12/124033http://cds.cern.ch/record/1377753engSilvestre, CatherineQuarkonia Measurements by the CMS Experiment in pp and PbPb CollisionsParticle Physics - ExperimentQuarkonia have been studied in different collision system and energy in order to understand the effects of the hot and dense medium created in heavy-ion collisions. CMS is well suited to measure quarkonia decays to muons given the muon identification and charged particle tracking capability. We report here prompt, non-prompt J/\psi, and \Upsilon\ production measured by the CMS experiment in pp collisions at \sqrt{s}=7 TeV. In addition, the J/\psi\ and \Upsilon\ production in PbPb at \sqrt{s_{NN}}=2.76 TeV and pp collisions at the same per nucleon energy are measured and compared. Prompt and non-prompt J/\psi\ contributions are separated for the first time in heavy-ion collisions, as is the ground from the excited states in the \Upsilon\ family. Suppression in PbPb at \sqrt{s_{NN}}=2.76 TeV is quantified for prompt J/\psi, B->J/\psi, and \Upsilon(1S), as well as the relative suppression of \Upsilon(2S+3S) compared to \Upsilon(1S).Quarkonia have been studied in different collision system and energy in order to understand the effects of the hot and dense medium created in heavy-ion collisions. CMS is well suited to measure quarkonia decays to muons given the muon identification and charged particle tracking capability. We report here prompt, non-prompt J/\psi, and \Upsilon\ production measured by the CMS experiment in pp collisions at \sqrt{s}=7 TeV. In addition, the J/\psi\ and \Upsilon\ production in PbPb at \sqrt{s_{NN}}=2.76 TeV and pp collisions at the same per nucleon energy are measured and compared. Prompt and non-prompt J/\psi\ contributions are separated for the first time in heavy-ion collisions, as is the ground from the excited states in the \Upsilon\ family. Suppression in PbPb at \sqrt{s_{NN}}=2.76 TeV is quantified for prompt J/\psi, B->J/\psi, and \Upsilon(1S), as well as the relative suppression of \Upsilon(2S+3S) compared to \Upsilon(1S).arXiv:1108.5077oai:cds.cern.ch:13777532011-08-26
spellingShingle Particle Physics - Experiment
Silvestre, Catherine
Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title_full Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title_fullStr Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title_full_unstemmed Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title_short Quarkonia Measurements by the CMS Experiment in pp and PbPb Collisions
title_sort quarkonia measurements by the cms experiment in pp and pbpb collisions
topic Particle Physics - Experiment
url https://dx.doi.org/10.1088/0954-3899/38/12/124033
http://cds.cern.ch/record/1377753
work_keys_str_mv AT silvestrecatherine quarkoniameasurementsbythecmsexperimentinppandpbpbcollisions