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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 in the muon decay channel given its muon dedicated identification and the precision of its trac...

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Autor principal: Silvestre, Catherine
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1516063
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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 in the muon decay channel given its muon dedicated identification and the precision of its tracking. 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 production in PbPb collisions at $\sqrt{s_{NN}}=2.76$~TeV is compared to the one measured in $pp$ collisions at the same energy. 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 $J/\psi$, $B\rightarrow J/\psi$, 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-15160632019-09-30T06:29:59Zhttp://cds.cern.ch/record/1516063engSilvestre, CatherineQuarkonia measurements by the CMS experiment in pp and PbPb collisionsDetectors and Experimental TechniquesQuarkonia 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 in the muon decay channel given its muon dedicated identification and the precision of its tracking. 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 production in PbPb collisions at $\sqrt{s_{NN}}=2.76$~TeV is compared to the one measured in $pp$ collisions at the same energy. 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 $J/\psi$, $B\rightarrow J/\psi$, and $\Upsilon$(1S), as well as the relative suppression of $\Upsilon$(2S+3S) compared to $\Upsilon$(1S).CMS-CR-2011-110oai:cds.cern.ch:15160632011-06-27
spellingShingle Detectors and Experimental Techniques
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 Detectors and Experimental Techniques
url http://cds.cern.ch/record/1516063
work_keys_str_mv AT silvestrecatherine quarkoniameasurementsbythecmsexperimentinppandpbpbcollisions