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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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2011
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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 |