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Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV

We present the updated results of a search for long-lived particles which have stopped in the Compact Muon Solenoid detector after being produced in 7 TeV $pp$ collisions from CERN's Large Hadron Collider. We looked for the subsequent decay of these particles during time intervals where there w...

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Autor principal: CMS Collaboration
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1369210
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author CMS Collaboration
author_facet CMS Collaboration
author_sort CMS Collaboration
collection CERN
description We present the updated results of a search for long-lived particles which have stopped in the Compact Muon Solenoid detector after being produced in 7 TeV $pp$ collisions from CERN's Large Hadron Collider. We looked for the subsequent decay of these particles during time intervals where there were no $pp$ collisions in the Compact Muon Solenoid experiment. In particular, we searched for decays during gaps between crossings in the Large Hadron Collider beam structure. We recorded such decays with a dedicated calorimeter trigger. In a dataset that is sensitive to an integrated luminosity of up to 886~pb$^{-1}$, depending on the particle lifetime, and a search interval corresponding to 168~hours of LHC operation, no significant excess above background was observed. In the absence of a signal, we set limits at 95\%~C.L. on gluino and stop production over 13 orders of magnitude of particle lifetime.
id cern-1369210
institution Organización Europea para la Investigación Nuclear
publishDate 2011
record_format invenio
spelling cern-13692102019-09-30T06:29:59Zhttp://cds.cern.ch/record/1369210CMS CollaborationSearch for Stopped HSCP in pp collisions at Sqrt(s)=7 TeVParticle Physics - ExperimentWe present the updated results of a search for long-lived particles which have stopped in the Compact Muon Solenoid detector after being produced in 7 TeV $pp$ collisions from CERN's Large Hadron Collider. We looked for the subsequent decay of these particles during time intervals where there were no $pp$ collisions in the Compact Muon Solenoid experiment. In particular, we searched for decays during gaps between crossings in the Large Hadron Collider beam structure. We recorded such decays with a dedicated calorimeter trigger. In a dataset that is sensitive to an integrated luminosity of up to 886~pb$^{-1}$, depending on the particle lifetime, and a search interval corresponding to 168~hours of LHC operation, no significant excess above background was observed. In the absence of a signal, we set limits at 95\%~C.L. on gluino and stop production over 13 orders of magnitude of particle lifetime.CMS-PAS-EXO-11-020oai:cds.cern.ch:13692102011
spellingShingle Particle Physics - Experiment
CMS Collaboration
Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title_full Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title_fullStr Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title_full_unstemmed Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title_short Search for Stopped HSCP in pp collisions at Sqrt(s)=7 TeV
title_sort search for stopped hscp in pp collisions at sqrt(s)=7 tev
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1369210
work_keys_str_mv AT cmscollaboration searchforstoppedhscpinppcollisionsatsqrts7tev