Interference effects in the H(→ γγ) + 2 jets channel at the LHC

Autores
Coradeschi, F.; de Florian, Daniel Enrique; Dixon, L. J.; Fidanza Romani, Nerina Andrea; Höche, S.; Ita, H.; Li, Y.; Mazzitelli, Javier Sebastián
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We compute the interference between the resonant process pp → H(→ γγ) + 2 jets and the corresponding continuum background at leading order in QCD. For the Higgs signal, we include gluon fusion (GF) and vector boson fusion (VBF) production channels, while for the background we consider all tree-level contributions, including pure EW effects (O(α 4 QED)) and QCD contributions (O(α 2 QEDα 2 s )), plus the loopinduced gluon-initiated process. After convolution with the experimental mass resolution, the main effect of the interference is to shift the position of the mass peak, as in the inclusive GF case studied previously. The apparent mass shift is small in magnitude but strongly dependent on the Higgs width, potentially allowing for a measurement of, or bound on, the width itself. In the H(→ γγ) + 2 jets channel, the VBF and GF contributions generate shifts of opposite signs which largely cancel, depending on the sets of cuts used, to as little as 5 MeV (toward a lower Higgs mass). The small magnitude of the shift makes this channel a good reference mass for measuring the inclusive mass shift of around 60 MeV in the Standard Model.
Fil: Coradeschi, F.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Università degli Studi di Firenze; Italia
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Dixon, L. J.. University of Stanford; Estados Unidos. Walter Burke Institute for Theoretical Physics; Estados Unidos
Fil: Fidanza Romani, Nerina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Höche, S.. University of Stanford; Estados Unidos
Fil: Ita, H.. Albert Ludwigs Universität Freiburg; Alemania
Fil: Li, Y.. University of Stanford; Estados Unidos
Fil: Mazzitelli, Javier Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Materia
HIGGS PHYSICS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/46504
Acceder
id CONICETDig_4d9e14e4c1b4949024bd6fba53f3e96c
oai_identifier_str oai:ri.conicet.gov.ar:11336/46504
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Interference effects in the H(→ γγ) + 2 jets channel at the LHCCoradeschi, F.de Florian, Daniel EnriqueDixon, L. J.Fidanza Romani, Nerina AndreaHöche, S.Ita, H.Li, Y.Mazzitelli, Javier SebastiánHIGGS PHYSICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We compute the interference between the resonant process pp → H(→ γγ) + 2 jets and the corresponding continuum background at leading order in QCD. For the Higgs signal, we include gluon fusion (GF) and vector boson fusion (VBF) production channels, while for the background we consider all tree-level contributions, including pure EW effects (O(α 4 QED)) and QCD contributions (O(α 2 QEDα 2 s )), plus the loopinduced gluon-initiated process. After convolution with the experimental mass resolution, the main effect of the interference is to shift the position of the mass peak, as in the inclusive GF case studied previously. The apparent mass shift is small in magnitude but strongly dependent on the Higgs width, potentially allowing for a measurement of, or bound on, the width itself. In the H(→ γγ) + 2 jets channel, the VBF and GF contributions generate shifts of opposite signs which largely cancel, depending on the sets of cuts used, to as little as 5 MeV (toward a lower Higgs mass). The small magnitude of the shift makes this channel a good reference mass for measuring the inclusive mass shift of around 60 MeV in the Standard Model.Fil: Coradeschi, F.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Università degli Studi di Firenze; ItaliaFil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Dixon, L. J.. University of Stanford; Estados Unidos. Walter Burke Institute for Theoretical Physics; Estados UnidosFil: Fidanza Romani, Nerina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Höche, S.. University of Stanford; Estados UnidosFil: Ita, H.. Albert Ludwigs Universität Freiburg; AlemaniaFil: Li, Y.. University of Stanford; Estados UnidosFil: Mazzitelli, Javier Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaAmerican Physical Society2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/46504Coradeschi, F.; de Florian, Daniel Enrique; Dixon, L. J.; Fidanza Romani, Nerina Andrea; Höche, S.; et al.; Interference effects in the H(→ γγ) + 2 jets channel at the LHC; American Physical Society; Physical Review D: Covering Particles, Fields, Gravitation and Cosmology; 92; 1; 7-2015; 1-82470-00102470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.05215info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.013004info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.013004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:18Zoai:ri.conicet.gov.ar:11336/46504instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:38:18.572CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interference effects in the H(→ γγ) + 2 jets channel at the LHC
title Interference effects in the H(→ γγ) + 2 jets channel at the LHC
spellingShingle Interference effects in the H(→ γγ) + 2 jets channel at the LHC
Coradeschi, F.
HIGGS PHYSICS
title_short Interference effects in the H(→ γγ) + 2 jets channel at the LHC
title_full Interference effects in the H(→ γγ) + 2 jets channel at the LHC
title_fullStr Interference effects in the H(→ γγ) + 2 jets channel at the LHC
title_full_unstemmed Interference effects in the H(→ γγ) + 2 jets channel at the LHC
title_sort Interference effects in the H(→ γγ) + 2 jets channel at the LHC
dc.creator.none.fl_str_mv Coradeschi, F.
de Florian, Daniel Enrique
Dixon, L. J.
Fidanza Romani, Nerina Andrea
Höche, S.
Ita, H.
Li, Y.
Mazzitelli, Javier Sebastián
author Coradeschi, F.
author_facet Coradeschi, F.
de Florian, Daniel Enrique
Dixon, L. J.
Fidanza Romani, Nerina Andrea
Höche, S.
Ita, H.
Li, Y.
Mazzitelli, Javier Sebastián
author_role author
author2 de Florian, Daniel Enrique
Dixon, L. J.
Fidanza Romani, Nerina Andrea
Höche, S.
Ita, H.
Li, Y.
Mazzitelli, Javier Sebastián
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv HIGGS PHYSICS
topic HIGGS PHYSICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We compute the interference between the resonant process pp → H(→ γγ) + 2 jets and the corresponding continuum background at leading order in QCD. For the Higgs signal, we include gluon fusion (GF) and vector boson fusion (VBF) production channels, while for the background we consider all tree-level contributions, including pure EW effects (O(α 4 QED)) and QCD contributions (O(α 2 QEDα 2 s )), plus the loopinduced gluon-initiated process. After convolution with the experimental mass resolution, the main effect of the interference is to shift the position of the mass peak, as in the inclusive GF case studied previously. The apparent mass shift is small in magnitude but strongly dependent on the Higgs width, potentially allowing for a measurement of, or bound on, the width itself. In the H(→ γγ) + 2 jets channel, the VBF and GF contributions generate shifts of opposite signs which largely cancel, depending on the sets of cuts used, to as little as 5 MeV (toward a lower Higgs mass). The small magnitude of the shift makes this channel a good reference mass for measuring the inclusive mass shift of around 60 MeV in the Standard Model.
Fil: Coradeschi, F.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Università degli Studi di Firenze; Italia
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Dixon, L. J.. University of Stanford; Estados Unidos. Walter Burke Institute for Theoretical Physics; Estados Unidos
Fil: Fidanza Romani, Nerina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Höche, S.. University of Stanford; Estados Unidos
Fil: Ita, H.. Albert Ludwigs Universität Freiburg; Alemania
Fil: Li, Y.. University of Stanford; Estados Unidos
Fil: Mazzitelli, Javier Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
description We compute the interference between the resonant process pp → H(→ γγ) + 2 jets and the corresponding continuum background at leading order in QCD. For the Higgs signal, we include gluon fusion (GF) and vector boson fusion (VBF) production channels, while for the background we consider all tree-level contributions, including pure EW effects (O(α 4 QED)) and QCD contributions (O(α 2 QEDα 2 s )), plus the loopinduced gluon-initiated process. After convolution with the experimental mass resolution, the main effect of the interference is to shift the position of the mass peak, as in the inclusive GF case studied previously. The apparent mass shift is small in magnitude but strongly dependent on the Higgs width, potentially allowing for a measurement of, or bound on, the width itself. In the H(→ γγ) + 2 jets channel, the VBF and GF contributions generate shifts of opposite signs which largely cancel, depending on the sets of cuts used, to as little as 5 MeV (toward a lower Higgs mass). The small magnitude of the shift makes this channel a good reference mass for measuring the inclusive mass shift of around 60 MeV in the Standard Model.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/46504
Coradeschi, F.; de Florian, Daniel Enrique; Dixon, L. J.; Fidanza Romani, Nerina Andrea; Höche, S.; et al.; Interference effects in the H(→ γγ) + 2 jets channel at the LHC; American Physical Society; Physical Review D: Covering Particles, Fields, Gravitation and Cosmology; 92; 1; 7-2015; 1-8
2470-0010
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46504
identifier_str_mv Coradeschi, F.; de Florian, Daniel Enrique; Dixon, L. J.; Fidanza Romani, Nerina Andrea; Höche, S.; et al.; Interference effects in the H(→ γγ) + 2 jets channel at the LHC; American Physical Society; Physical Review D: Covering Particles, Fields, Gravitation and Cosmology; 92; 1; 7-2015; 1-8
2470-0010
2470-0029
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.05215
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.013004
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.013004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613210123010048
score 13.070432

Publicaciones similares