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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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Lenguaje: | eng |
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2011
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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). |
id | cern-1516063 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2011 |
record_format | invenio |
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 |