J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS

In this note the J/Psi -> mu+mu- reconstruction performance in CMS is studied in detail by using Bs -> J/Psi + Phi -> mumuKK events. The reconstruction efficiencies of J/Psi mesons and their decay muons are obtained as a function of the transverse momentum pT and the pseudo-rapidity eta. We...

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Detalles Bibliográficos
Autores principales: Yang, Zong-Chang, Qian, Si-Jin
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1049918
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author Yang, Zong-Chang
Qian, Si-Jin
author_facet Yang, Zong-Chang
Qian, Si-Jin
author_sort Yang, Zong-Chang
collection CERN
description In this note the J/Psi -> mu+mu- reconstruction performance in CMS is studied in detail by using Bs -> J/Psi + Phi -> mumuKK events. The reconstruction efficiencies of J/Psi mesons and their decay muons are obtained as a function of the transverse momentum pT and the pseudo-rapidity eta. We also study the muon trigger efficiency for this channel with the planned Level-1 trigger and High Level Trigger selection criteria. It was observed that the muon reconstruction efficiency decreases when the two decay muons have a small or large 3D angular separation, which further affects the overall J/Psi reconstruction efficiency. Finally, we obtain upper limits on the efficiency and mass resolution for J/Psi offline reconstruction in CMS using dedicated samples with single J/Psi particles.
id cern-1049918
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10499182019-09-30T06:29:59Zhttp://cds.cern.ch/record/1049918engYang, Zong-ChangQian, Si-JinJ/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMSDetectors and Experimental TechniquesIn this note the J/Psi -> mu+mu- reconstruction performance in CMS is studied in detail by using Bs -> J/Psi + Phi -> mumuKK events. The reconstruction efficiencies of J/Psi mesons and their decay muons are obtained as a function of the transverse momentum pT and the pseudo-rapidity eta. We also study the muon trigger efficiency for this channel with the planned Level-1 trigger and High Level Trigger selection criteria. It was observed that the muon reconstruction efficiency decreases when the two decay muons have a small or large 3D angular separation, which further affects the overall J/Psi reconstruction efficiency. Finally, we obtain upper limits on the efficiency and mass resolution for J/Psi offline reconstruction in CMS using dedicated samples with single J/Psi particles.CMS-NOTE-2007-017oai:cds.cern.ch:10499182007-07-03
spellingShingle Detectors and Experimental Techniques
Yang, Zong-Chang
Qian, Si-Jin
J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title_full J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title_fullStr J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title_full_unstemmed J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title_short J/$\psi \to mu^(+)mu^(-)$ Reconstruction in CMS
title_sort j/$\psi \to mu^(+)mu^(-)$ reconstruction in cms
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1049918
work_keys_str_mv AT yangzongchang jpsitomumureconstructionincms
AT qiansijin jpsitomumureconstructionincms

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