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Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS

The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a p...

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Detalles Bibliográficos
Autor principal: Ratnikov, Fedor
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1345315
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author Ratnikov, Fedor
author_facet Ratnikov, Fedor
author_sort Ratnikov, Fedor
collection CERN
description The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10^-32 /cm^2/s, an integrated luminosity of 10/pb, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference (m_gluino-m_neutralino)>100 GeV/c^2, and assuming BR(gluino-> g neutralino)=100%, m_gluino < 370 GeV/c^2 are excluded for lifetimes from 10^-6 s to 1000 s.
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institution Organización Europea para la Investigación Nuclear
language eng
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spelling cern-13453152019-09-30T06:29:59Zhttp://cds.cern.ch/record/1345315engRatnikov, FedorSearch for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMSDetectors and Experimental TechniquesParticle Physics - ExperimentThe results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10^-32 /cm^2/s, an integrated luminosity of 10/pb, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference (m_gluino-m_neutralino)>100 GeV/c^2, and assuming BR(gluino-> g neutralino)=100%, m_gluino < 370 GeV/c^2 are excluded for lifetimes from 10^-6 s to 1000 s.The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10^-32 /cm^2/s, an integrated luminosity of 10/pb, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference (m_gluino-m_neutralino)>100 GeV/c^2, and assuming BR(gluino-> g neutralino)=100%, m_gluino < 370 GeV/c^2 are excluded for lifetimes from 10^-6 s to 1000 s.arXiv:1111.1635CMS-CR-2011-036CMS CR-2011/036CMS-CR-2011-036oai:cds.cern.ch:13453152011-11-08
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Ratnikov, Fedor
Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title_full Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title_fullStr Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title_full_unstemmed Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title_short Search for Stopped Gluinos in pp collisions at $\sqrt{s}$=7 TeV at CMS
title_sort search for stopped gluinos in pp collisions at $\sqrt{s}$=7 tev at cms
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url http://cds.cern.ch/record/1345315
work_keys_str_mv AT ratnikovfedor searchforstoppedgluinosinppcollisionsatsqrts7tevatcms