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Searching for Stopped Gluinos at CMS

We describe plans for a search for long-lived particles which will become stopped by the CMS detector. We will look for the subsequent decay of these particles during time intervals where there are no $pp$ collisions in CMS: during gaps between crossings in the LHC beam structure, and during inter-f...

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Autor principal: Ratnikov, Fedor
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.3327722
http://cds.cern.ch/record/1221029
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author Ratnikov, Fedor
author_facet Ratnikov, Fedor
author_sort Ratnikov, Fedor
collection CERN
description We describe plans for a search for long-lived particles which will become stopped by the CMS detector. We will look for the subsequent decay of these particles during time intervals where there are no $pp$ collisions in CMS: during gaps between crossings in the LHC beam structure, and during inter-fill periods between the beam being dumped and re-injection. Such long living particles decays will be recorded with dedicated calorimeter triggers. For models predicting these particles, such as split-susy gluinos, the large cross-section combined with good stopping power of CMS, yields a significant number of triggerable decays. If LHC instantaneous luminosity approaches 10^32 cm^-2 s^-1 in 2009-10, 5-sigma significance can be established in a matter of days, since these decays occur on top of a negligible background. Due to limited size, this paper concentrates on main idea and expected results. More details are available in https://twiki.cern.ch/twiki/bin/view/CMS/PhysicsResults.
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spelling cern-12210292023-03-14T16:41:06Zdoi:10.1063/1.3327722http://cds.cern.ch/record/1221029engRatnikov, FedorSearching for Stopped Gluinos at CMSParticle Physics - ExperimentWe describe plans for a search for long-lived particles which will become stopped by the CMS detector. We will look for the subsequent decay of these particles during time intervals where there are no $pp$ collisions in CMS: during gaps between crossings in the LHC beam structure, and during inter-fill periods between the beam being dumped and re-injection. Such long living particles decays will be recorded with dedicated calorimeter triggers. For models predicting these particles, such as split-susy gluinos, the large cross-section combined with good stopping power of CMS, yields a significant number of triggerable decays. If LHC instantaneous luminosity approaches 10^32 cm^-2 s^-1 in 2009-10, 5-sigma significance can be established in a matter of days, since these decays occur on top of a negligible background. Due to limited size, this paper concentrates on main idea and expected results. More details are available in https://twiki.cern.ch/twiki/bin/view/CMS/PhysicsResults.Due to limited size, this paper concentrates on main idea and expected results. More details are available in https://twiki.cern.ch/twiki/bin/view/CMS/PhysicsResults.We describe plans for a search for long-lived particles which will become stopped by the CMS detector. We will look for the subsequent decay of these particles during time intervals where there are no $pp$ collisions in CMS: during gaps between crossings in the LHC beam structure, and during inter-fill periods between the beam being dumped and re-injection. Such long living particles decays will be recorded with dedicated calorimeter triggers. For models predicting these particles, such as split-susy gluinos, the large cross-section combined with good stopping power of CMS, yields a significant number of triggerable decays. If LHC instantaneous luminosity approaches 10^32 cm^-2 s^-1 in 2009-10, 5-sigma significance can be established in a matter of days, since these decays occur on top of a negligible background. Due to limited size, this paper concentrates on main idea and expected results. More details are available in https://twiki.cern.ch/twiki/bin/view/CMS/PhysicsResults.arXiv:0911.1742oai:cds.cern.ch:12210292009-11-10
spellingShingle Particle Physics - Experiment
Ratnikov, Fedor
Searching for Stopped Gluinos at CMS
title Searching for Stopped Gluinos at CMS
title_full Searching for Stopped Gluinos at CMS
title_fullStr Searching for Stopped Gluinos at CMS
title_full_unstemmed Searching for Stopped Gluinos at CMS
title_short Searching for Stopped Gluinos at CMS
title_sort searching for stopped gluinos at cms
topic Particle Physics - Experiment
url https://dx.doi.org/10.1063/1.3327722
http://cds.cern.ch/record/1221029
work_keys_str_mv AT ratnikovfedor searchingforstoppedgluinosatcms