Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays

Autores
Dova, María Teresa; L3 Collaboration
Año de publicación
1998
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Events characterised by large hadronic energy and transverse momentum are selected from the data collected by the L3 detector at LEP at centre-of-mass energies between 161 and 172 GeV, corresponding to an integrated luminosity of 21 pb−1. The visible mass and the missing mass distributions of the selected events are consistent with those expected from Standard Model processes. This result is combined with that from data taken at the Z resonance to set an upper limit on the production rate and decay into invisible final states of a non-minimal Higgs boson, as a function of the Higgs mass. Assuming the non-minimal Higgs production cross section to be the same as for the Standard Model Higgs boson and the decay branching fraction into invisible final states to be 100%, a Higgs mass lower limit of 69.6 GeV is derived at 95% confidence level.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
hadronic event
Higgs decay
L3 detector
Física
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/78169
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/78169
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decaysDova, María TeresaL3 CollaborationCiencias Exactashadronic eventHiggs decayL3 detectorFísicaEvents characterised by large hadronic energy and transverse momentum are selected from the data collected by the L3 detector at LEP at centre-of-mass energies between 161 and 172 GeV, corresponding to an integrated luminosity of 21 pb−1. The visible mass and the missing mass distributions of the selected events are consistent with those expected from Standard Model processes. This result is combined with that from data taken at the Z resonance to set an upper limit on the production rate and decay into invisible final states of a non-minimal Higgs boson, as a function of the Higgs mass. Assuming the non-minimal Higgs production cross section to be the same as for the Standard Model Higgs boson and the decay branching fraction into invisible final states to be 100%, a Higgs mass lower limit of 69.6 GeV is derived at 95% confidence level.Facultad de Ciencias Exactas1998-02-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf389-398http://sedici.unlp.edu.ar/handle/10915/78169enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:53:19Zoai:sedici.unlp.edu.ar:10915/78169Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:53:19.408SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
title Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
spellingShingle Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
Dova, María Teresa
Ciencias Exactas
hadronic event
Higgs decay
L3 detector
Física
title_short Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
title_full Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
title_fullStr Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
title_full_unstemmed Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
title_sort Missing mass spectra in hadronic events from e+e- collisions at √s = 161–172 GeV and limits on invisible Higgs decays
dc.creator.none.fl_str_mv Dova, María Teresa
L3 Collaboration
author Dova, María Teresa
author_facet Dova, María Teresa
L3 Collaboration
author_role author
author2 L3 Collaboration
author2_role author
dc.subject.none.fl_str_mv Ciencias Exactas
hadronic event
Higgs decay
L3 detector
Física
topic Ciencias Exactas
hadronic event
Higgs decay
L3 detector
Física
dc.description.none.fl_txt_mv Events characterised by large hadronic energy and transverse momentum are selected from the data collected by the L3 detector at LEP at centre-of-mass energies between 161 and 172 GeV, corresponding to an integrated luminosity of 21 pb−1. The visible mass and the missing mass distributions of the selected events are consistent with those expected from Standard Model processes. This result is combined with that from data taken at the Z resonance to set an upper limit on the production rate and decay into invisible final states of a non-minimal Higgs boson, as a function of the Higgs mass. Assuming the non-minimal Higgs production cross section to be the same as for the Standard Model Higgs boson and the decay branching fraction into invisible final states to be 100%, a Higgs mass lower limit of 69.6 GeV is derived at 95% confidence level.
Facultad de Ciencias Exactas
description Events characterised by large hadronic energy and transverse momentum are selected from the data collected by the L3 detector at LEP at centre-of-mass energies between 161 and 172 GeV, corresponding to an integrated luminosity of 21 pb−1. The visible mass and the missing mass distributions of the selected events are consistent with those expected from Standard Model processes. This result is combined with that from data taken at the Z resonance to set an upper limit on the production rate and decay into invisible final states of a non-minimal Higgs boson, as a function of the Higgs mass. Assuming the non-minimal Higgs production cross section to be the same as for the Standard Model Higgs boson and the decay branching fraction into invisible final states to be 100%, a Higgs mass lower limit of 69.6 GeV is derived at 95% confidence level.
publishDate 1998
dc.date.none.fl_str_mv 1998-02-05
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/10915/78169
url http://sedici.unlp.edu.ar/handle/10915/78169
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0370-2693
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
389-398
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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