Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector

New metastable massive particles with electric and colour charge are features of many theories beyond the Standard Model. A search is performed for long-lived gluino-based R-hadrons with the ATLAS detector at the LHC using a data sample corresponding to an integrated luminosity of 31 pb−1. We search...

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Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
ATLAS detector
metastable massive particles
R-hadrons
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/167537
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-167537
record_format dspace
spelling I19-R120-10915-1675372024-06-26T20:08:38Z http://sedici.unlp.edu.ar/handle/10915/167537 Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín Fernando The ATLAS Collaboration 2012 2024-06-26T17:43:40Z en Física ATLAS detector metastable massive particles R-hadrons New metastable massive particles with electric and colour charge are features of many theories beyond the Standard Model. A search is performed for long-lived gluino-based R-hadrons with the ATLAS detector at the LHC using a data sample corresponding to an integrated luminosity of 31 pb−1. We search for evidence of particles that have come to rest in the ATLAS detector and decay at some later time during the periods in the LHC bunch structure without proton–proton collisions. No significant deviations from the expected backgrounds are observed, and a cross-section limit is set. It can be interpreted as excluding gluino-based R-hadrons with masses less than 341 GeV at the 95 % C.L., for lifetimes from 10−5 to 103 seconds and a neutralino mass of 100 GeV. La lista completa de autores puede verse en el archivo asociado. Instituto de Física La Plata Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
ATLAS detector
metastable massive particles
R-hadrons
spellingShingle Física
ATLAS detector
metastable massive particles
R-hadrons
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
topic_facet Física
ATLAS detector
metastable massive particles
R-hadrons
description New metastable massive particles with electric and colour charge are features of many theories beyond the Standard Model. A search is performed for long-lived gluino-based R-hadrons with the ATLAS detector at the LHC using a data sample corresponding to an integrated luminosity of 31 pb−1. We search for evidence of particles that have come to rest in the ATLAS detector and decay at some later time during the periods in the LHC bunch structure without proton–proton collisions. No significant deviations from the expected backgrounds are observed, and a cross-section limit is set. It can be interpreted as excluding gluino-based R-hadrons with masses less than 341 GeV at the 95 % C.L., for lifetimes from 10−5 to 103 seconds and a neutralino mass of 100 GeV.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
title_short Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
title_full Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
title_fullStr Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
title_full_unstemmed Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
title_sort search for decays of stopped, long-lived particles from 7 tev pp collisions with the atlas detector
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/167537
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