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Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?

<!--HTML-->Heavy quarkonium states are considered as one of the key observables for the study of the phase transition from a system made of hadrons towards a Quark-Gluon Plasma. In the last 25 years, experiments at CERN and Brookhaven have studied collisions of heavy ions looking for a suppre...

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Autor principal: Scomparin, Enrico
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1492070
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author Scomparin, Enrico
author_facet Scomparin, Enrico
author_sort Scomparin, Enrico
collection CERN
description <!--HTML-->Heavy quarkonium states are considered as one of the key observables for the study of the phase transition from a system made of hadrons towards a Quark-Gluon Plasma. In the last 25 years, experiments at CERN and Brookhaven have studied collisions of heavy ions looking for a suppression of charmonia/bottomonia, considered as a signature of the phase transition. After an introduction to the main concepts behind these studies, I will present the results obtained in Pb-Pb collisions by the ALICE experiment. The ALICE results will be critically compared to those of lower energy experiments, to CMS/ATLAS results, and to various model calculations. The large cross sections for heavy-quark production at LHC energies are expected to induce a novel production mechanism for charmonia in heavy-ion collisions, related to a (re)combination of ccbar pairs along the history of the collision and/or at hadronization. The occurrence of such a process at the LHC will be discussed. Finally, prospects for future measurements will be addressed.
id cern-1492070
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14920702022-11-02T22:33:25Zhttp://cds.cern.ch/record/1492070engScomparin, EnricoCharmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?LHC Seminar<!--HTML-->Heavy quarkonium states are considered as one of the key observables for the study of the phase transition from a system made of hadrons towards a Quark-Gluon Plasma. In the last 25 years, experiments at CERN and Brookhaven have studied collisions of heavy ions looking for a suppression of charmonia/bottomonia, considered as a signature of the phase transition. After an introduction to the main concepts behind these studies, I will present the results obtained in Pb-Pb collisions by the ALICE experiment. The ALICE results will be critically compared to those of lower energy experiments, to CMS/ATLAS results, and to various model calculations. The large cross sections for heavy-quark production at LHC energies are expected to induce a novel production mechanism for charmonia in heavy-ion collisions, related to a (re)combination of ccbar pairs along the history of the collision and/or at hadronization. The occurrence of such a process at the LHC will be discussed. Finally, prospects for future measurements will be addressed.oai:cds.cern.ch:14920702012
spellingShingle LHC Seminar
Scomparin, Enrico
Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title_full Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title_fullStr Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title_full_unstemmed Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title_short Charmonium production in Pb-Pb collisions at ALICE: from suppression to regeneration ?
title_sort charmonium production in pb-pb collisions at alice: from suppression to regeneration ?
topic LHC Seminar
url http://cds.cern.ch/record/1492070
work_keys_str_mv AT scomparinenrico charmoniumproductioninpbpbcollisionsatalicefromsuppressiontoregeneration