Sensitivity to new physics in final states with multiple gauge and Higgs bosons

Abstract We analyse the sensitivity to beyond-the-Standard-Model effects of hadron-collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson. We examine current experimental results by the CMS collaboration in the context of a di...

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Main Authors: A. Cappati, R. Covarelli, P. Torrielli, M. Zaro
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2022)038
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author A. Cappati
R. Covarelli
P. Torrielli
M. Zaro
author_facet A. Cappati
R. Covarelli
P. Torrielli
M. Zaro
author_sort A. Cappati
collection DOAJ
description Abstract We analyse the sensitivity to beyond-the-Standard-Model effects of hadron-collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson. We examine current experimental results by the CMS collaboration in the context of a dimension-8 extension of the Standard Model in an effective-field-theory formalism. We show that constraints from vector-boson-fusion Higgs-pair production on operators that modify the Standard Model VVHH interactions are already comparable with or more stringent than those quoted in the analysis of vector-boson-scattering final states. We study the modifications of such constraints when introducing unitarity bounds, and investigate the potential of new experimental final states, such as ZHH associated production. Finally, we show perspectives for the high-luminosity phase of the LHC.
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spelling doaj.art-054473dead3e42849579ebeb07ce90ab2022-12-22T04:24:47ZengSpringerOpenJournal of High Energy Physics1029-84792022-09-012022912510.1007/JHEP09(2022)038Sensitivity to new physics in final states with multiple gauge and Higgs bosonsA. Cappati0R. Covarelli1P. Torrielli2M. Zaro3Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecóle PolytechniqueDipartimento di Fisica, Università di TorinoDipartimento di Fisica, Università di TorinoTIF Lab, Università di MilanoAbstract We analyse the sensitivity to beyond-the-Standard-Model effects of hadron-collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson. We examine current experimental results by the CMS collaboration in the context of a dimension-8 extension of the Standard Model in an effective-field-theory formalism. We show that constraints from vector-boson-fusion Higgs-pair production on operators that modify the Standard Model VVHH interactions are already comparable with or more stringent than those quoted in the analysis of vector-boson-scattering final states. We study the modifications of such constraints when introducing unitarity bounds, and investigate the potential of new experimental final states, such as ZHH associated production. Finally, we show perspectives for the high-luminosity phase of the LHC.https://doi.org/10.1007/JHEP09(2022)038Higgs ProductionSMEFT
spellingShingle A. Cappati
R. Covarelli
P. Torrielli
M. Zaro
Sensitivity to new physics in final states with multiple gauge and Higgs bosons
Journal of High Energy Physics
Higgs Production
SMEFT
title Sensitivity to new physics in final states with multiple gauge and Higgs bosons
title_full Sensitivity to new physics in final states with multiple gauge and Higgs bosons
title_fullStr Sensitivity to new physics in final states with multiple gauge and Higgs bosons
title_full_unstemmed Sensitivity to new physics in final states with multiple gauge and Higgs bosons
title_short Sensitivity to new physics in final states with multiple gauge and Higgs bosons
title_sort sensitivity to new physics in final states with multiple gauge and higgs bosons
topic Higgs Production
SMEFT
url https://doi.org/10.1007/JHEP09(2022)038
work_keys_str_mv AT acappati sensitivitytonewphysicsinfinalstateswithmultiplegaugeandhiggsbosons
AT rcovarelli sensitivitytonewphysicsinfinalstateswithmultiplegaugeandhiggsbosons
AT ptorrielli sensitivitytonewphysicsinfinalstateswithmultiplegaugeandhiggsbosons
AT mzaro sensitivitytonewphysicsinfinalstateswithmultiplegaugeandhiggsbosons