Detection of heavy quark resonances with heavy ion beams in CMS

Performances of CMS in measuring J/psi and Upsilon production in heavy ion collisions are investigated. Resonance cross-sections and secondary particle multiplicities are calculated as a function of the collision impact parameter. The most unfavourable assumptions are considered for the hadron multi...

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Detalles Bibliográficos
Autores principales: Bedjidian, Marc, Drapier, Olivier
Lenguaje:eng
Publicado: 1999
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/687158
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author Bedjidian, Marc
Drapier, Olivier
author_facet Bedjidian, Marc
Drapier, Olivier
author_sort Bedjidian, Marc
collection CERN
description Performances of CMS in measuring J/psi and Upsilon production in heavy ion collisions are investigated. Resonance cross-sections and secondary particle multiplicities are calculated as a function of the collision impact parameter. The most unfavourable assumptions are considered for the hadron multiplicity in central collisions and their P_T distributions. Results for lead and calcium beams are presented. The Upsilon acceptance reaches an acceptable value when the analysis is restricted to the barrel region ( |eta|<1.5) and to muons with a transverse momentum P_T > 3.5 GeV/c. The dimuon mass spectra obtained for one month of data taking are presented. Statistics and Signal/Background ratios allow to conclude that CMS has good capabilities for thess studies.
id cern-687158
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-6871582019-09-30T06:29:59Zhttp://cds.cern.ch/record/687158engBedjidian, MarcDrapier, OlivierDetection of heavy quark resonances with heavy ion beams in CMSDetectors and Experimental TechniquesPerformances of CMS in measuring J/psi and Upsilon production in heavy ion collisions are investigated. Resonance cross-sections and secondary particle multiplicities are calculated as a function of the collision impact parameter. The most unfavourable assumptions are considered for the hadron multiplicity in central collisions and their P_T distributions. Results for lead and calcium beams are presented. The Upsilon acceptance reaches an acceptable value when the analysis is restricted to the barrel region ( |eta|<1.5) and to muons with a transverse momentum P_T > 3.5 GeV/c. The dimuon mass spectra obtained for one month of data taking are presented. Statistics and Signal/Background ratios allow to conclude that CMS has good capabilities for thess studies.CMS-NOTE-1999-052oai:cds.cern.ch:6871581999-09-20
spellingShingle Detectors and Experimental Techniques
Bedjidian, Marc
Drapier, Olivier
Detection of heavy quark resonances with heavy ion beams in CMS
title Detection of heavy quark resonances with heavy ion beams in CMS
title_full Detection of heavy quark resonances with heavy ion beams in CMS
title_fullStr Detection of heavy quark resonances with heavy ion beams in CMS
title_full_unstemmed Detection of heavy quark resonances with heavy ion beams in CMS
title_short Detection of heavy quark resonances with heavy ion beams in CMS
title_sort detection of heavy quark resonances with heavy ion beams in cms
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/687158
work_keys_str_mv AT bedjidianmarc detectionofheavyquarkresonanceswithheavyionbeamsincms
AT drapierolivier detectionofheavyquarkresonanceswithheavyionbeamsincms

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