Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector
- Autores
- Alonso, Francisco; Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. In this Letter, results are presented of a search for events containing one or more such particles, which decay at a significant distance from their production point, using a final state containing charged hadrons and an associated muon. This analysis uses a data sample of proton–proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 4.4 fb−1 collected in 2011 by the ATLAS detector operating at the Large Hadron Collider. Results are interpreted in the context of R-parity violating supersymmetric scenarios. No events in the signal region are observed and limits are set on the production cross section for pair production of supersymmetric particles, multiplied by the square of the branching fraction for a neutralino to decay to charged hadrons and a muon, based on the scenario where both of the produced supersymmetric particles give rise to neutralinos that decay in this way. However, since the search strategy is based on triggering on and reconstructing the decay products of individual long-lived particles, irrespective of the rest of the event, these limits can easily be reinterpreted in scenarios with different numbers of long-lived particles per event. The limits are presented as a function of neutralino lifetime, and for a range of squark and neutralino masses.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
Partículas Elementales
proton-proton collisions
ATLAS detector - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/79847
Ver los metadatos del registro completo
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Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detectorAlonso, FranciscoAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasFísicaPartículas Elementalesproton-proton collisionsATLAS detectorMany extensions of the Standard Model posit the existence of heavy particles with long lifetimes. In this Letter, results are presented of a search for events containing one or more such particles, which decay at a significant distance from their production point, using a final state containing charged hadrons and an associated muon. This analysis uses a data sample of proton–proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 4.4 fb<sup>−1</sup> collected in 2011 by the ATLAS detector operating at the Large Hadron Collider. Results are interpreted in the context of R-parity violating supersymmetric scenarios. No events in the signal region are observed and limits are set on the production cross section for pair production of supersymmetric particles, multiplied by the square of the branching fraction for a neutralino to decay to charged hadrons and a muon, based on the scenario where both of the produced supersymmetric particles give rise to neutralinos that decay in this way. However, since the search strategy is based on triggering on and reconstructing the decay products of individual long-lived particles, irrespective of the rest of the event, these limits can easily be reinterpreted in scenarios with different numbers of long-lived particles per event. The limits are presented as a function of neutralino lifetime, and for a range of squark and neutralino masses.Facultad de Ciencias Exactas2013-01-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf280-298http://sedici.unlp.edu.ar/handle/10915/79847enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2013.01.042info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:11:54Zoai:sedici.unlp.edu.ar:10915/79847Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:11:54.883SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
title |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
spellingShingle |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector Alonso, Francisco Ciencias Exactas Física Partículas Elementales proton-proton collisions ATLAS detector |
title_short |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
title_full |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
title_fullStr |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
title_full_unstemmed |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
title_sort |
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton–proton collisions at √s = 7 TeV with the ATLAS detector |
dc.creator.none.fl_str_mv |
Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author |
Alonso, Francisco |
author_facet |
Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author_role |
author |
author2 |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física Partículas Elementales proton-proton collisions ATLAS detector |
topic |
Ciencias Exactas Física Partículas Elementales proton-proton collisions ATLAS detector |
dc.description.none.fl_txt_mv |
Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. In this Letter, results are presented of a search for events containing one or more such particles, which decay at a significant distance from their production point, using a final state containing charged hadrons and an associated muon. This analysis uses a data sample of proton–proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 4.4 fb<sup>−1</sup> collected in 2011 by the ATLAS detector operating at the Large Hadron Collider. Results are interpreted in the context of R-parity violating supersymmetric scenarios. No events in the signal region are observed and limits are set on the production cross section for pair production of supersymmetric particles, multiplied by the square of the branching fraction for a neutralino to decay to charged hadrons and a muon, based on the scenario where both of the produced supersymmetric particles give rise to neutralinos that decay in this way. However, since the search strategy is based on triggering on and reconstructing the decay products of individual long-lived particles, irrespective of the rest of the event, these limits can easily be reinterpreted in scenarios with different numbers of long-lived particles per event. The limits are presented as a function of neutralino lifetime, and for a range of squark and neutralino masses. Facultad de Ciencias Exactas |
description |
Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. In this Letter, results are presented of a search for events containing one or more such particles, which decay at a significant distance from their production point, using a final state containing charged hadrons and an associated muon. This analysis uses a data sample of proton–proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 4.4 fb<sup>−1</sup> collected in 2011 by the ATLAS detector operating at the Large Hadron Collider. Results are interpreted in the context of R-parity violating supersymmetric scenarios. No events in the signal region are observed and limits are set on the production cross section for pair production of supersymmetric particles, multiplied by the square of the branching fraction for a neutralino to decay to charged hadrons and a muon, based on the scenario where both of the produced supersymmetric particles give rise to neutralinos that decay in this way. However, since the search strategy is based on triggering on and reconstructing the decay products of individual long-lived particles, irrespective of the rest of the event, these limits can easily be reinterpreted in scenarios with different numbers of long-lived particles per event. The limits are presented as a function of neutralino lifetime, and for a range of squark and neutralino masses. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-26 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/79847 |
url |
http://sedici.unlp.edu.ar/handle/10915/79847 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2013.01.042 |
dc.rights.none.fl_str_mv |
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openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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