Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results

We investigate signatures induced by a very light pseudoscalar Higgs in neutralino decays in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and determine their observability at the LHC. We concentrate on scenarios which feature two light scalar Higgs bosons (one of them is SM-like with a...

Descripción completa

Detalles Bibliográficos
Autores: Cerdeño, David G., Ghosh, Pradipta, Beom-Park, Chan, Peiró, Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/96567
Acceso en línea:http://hdl.handle.net/10261/96567
Access Level:acceso abierto
Palabra clave:Supersymmetry Phenomenology
id ES_792091f6cb8a2db89995b44a4f90be6f
oai_identifier_str oai:digital.csic.es:10261/96567
network_acronym_str ES
network_name_str España
repository_id_str
spelling Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC resultsCerdeño, David G.Ghosh, PradiptaBeom-Park, ChanPeiró, MiguelSupersymmetry PhenomenologyWe investigate signatures induced by a very light pseudoscalar Higgs in neutralino decays in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and determine their observability at the LHC. We concentrate on scenarios which feature two light scalar Higgs bosons (one of them is SM-like with a mass of 125 GeV and a singlet-like lighter one) with a very light (singlet-like) pseudoscalar Higgs in the mass range 2m τ < ma01 < 2m b . We consider neutralino-chargino pair production and the subsequent decay χ˜02,3→ χ˜01a01 , which leads to topologies involving multi-leptons and missing transverse energy. We determine a set of selection cuts that can effectively isolate the signal from backgrounds of the Standard Model or the Minimal Supersymmetric Standard Model. We also exemplify the procedure with a set of benchmark points, for which we compute the expected number of events and signal strength for LHC with 8 TeV center of mass energy. We show that this signal can already be probed for some points in the NMSSM parameter space.DGC is supported by the Ramon y Cajal program of the Spanish MICINN. CBP is supported by the CERN-Korea fellowship through the National Research Foundation of Korea. MP is supported by a MultiDark Scholarship. DGC, PG and MP thank the support of the Consolider-Ingenio 2010 programme under grant MULTIDARK CSD2009-00064, the Spanish MICINN under Grants No. FPA2009-08958 and FPA2012-34694, the Spanish MINECO “Centro de excelencia Severo Ochoa Program” under grant No. SEV-2012-0249, the Community of Madrid under Grant No. HEPHACOS S2009/ESP-1473, and the European Union under the Marie Curie-ITN Program No. PITN-GA-2009-237920.Peer reviewedSpringer NatureSCOAP201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/96567reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/JHEP02(2014)048info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/965672026-05-22T06:33:51Z
dc.title.none.fl_str_mv Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
title Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
spellingShingle Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
Cerdeño, David G.
Supersymmetry Phenomenology
title_short Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
title_full Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
title_fullStr Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
title_full_unstemmed Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
title_sort Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
dc.creator.none.fl_str_mv Cerdeño, David G.
Ghosh, Pradipta
Beom-Park, Chan
Peiró, Miguel
author Cerdeño, David G.
author_facet Cerdeño, David G.
Ghosh, Pradipta
Beom-Park, Chan
Peiró, Miguel
author_role author
author2 Ghosh, Pradipta
Beom-Park, Chan
Peiró, Miguel
author2_role author
author
author
dc.contributor.none.fl_str_mv SCOAP
dc.subject.none.fl_str_mv Supersymmetry Phenomenology
topic Supersymmetry Phenomenology
description We investigate signatures induced by a very light pseudoscalar Higgs in neutralino decays in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and determine their observability at the LHC. We concentrate on scenarios which feature two light scalar Higgs bosons (one of them is SM-like with a mass of 125 GeV and a singlet-like lighter one) with a very light (singlet-like) pseudoscalar Higgs in the mass range 2m τ < ma01 < 2m b . We consider neutralino-chargino pair production and the subsequent decay χ˜02,3→ χ˜01a01 , which leads to topologies involving multi-leptons and missing transverse energy. We determine a set of selection cuts that can effectively isolate the signal from backgrounds of the Standard Model or the Minimal Supersymmetric Standard Model. We also exemplify the procedure with a set of benchmark points, for which we compute the expected number of events and signal strength for LHC with 8 TeV center of mass energy. We show that this signal can already be probed for some points in the NMSSM parameter space.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/96567
url http://hdl.handle.net/10261/96567
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/JHEP02(2014)048
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411324771958784
score 15.81155

Similares en LA Referencia