Effective Field Theory with Two Higgs Doublets

In this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a $Z_2$-invariant CP-conserving Higgs potentia...

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Detalles Bibliográficos
Autores principales: Crivellin, Andreas, Ghezzi, Margherita, Procura, Massimiliano
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP09(2016)160
http://cds.cern.ch/record/2205466
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author Crivellin, Andreas
Ghezzi, Margherita
Procura, Massimiliano
author_facet Crivellin, Andreas
Ghezzi, Margherita
Procura, Massimiliano
author_sort Crivellin, Andreas
collection CERN
description In this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a $Z_2$-invariant CP-conserving Higgs potential. The effects on Higgs and gauge boson masses, mixing angles in the Higgs sector as well as couplings to fermions and gauge bosons are computed. At variance with the case of a single Higgs doublet, we find that pair production of SM-like Higgses, arising through dimension-six operators, is not fixed by fermion-fermion-Higgs couplings and can therefore be sizable.
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spelling cern-22054662023-10-04T08:16:30Zdoi:10.1007/JHEP09(2016)160http://cds.cern.ch/record/2205466engCrivellin, AndreasGhezzi, MargheritaProcura, MassimilianoEffective Field Theory with Two Higgs DoubletsParticle Physics - PhenomenologyIn this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a $Z_2$-invariant CP-conserving Higgs potential. The effects on Higgs and gauge boson masses, mixing angles in the Higgs sector as well as couplings to fermions and gauge bosons are computed. At variance with the case of a single Higgs doublet, we find that pair production of SM-like Higgses, arising through dimension-six operators, is not fixed by fermion-fermion-Higgs couplings and can therefore be sizable.In this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a Z$_{2}$-invariant CP-conserving Higgs potential. The effects on Higgs and gauge boson masses, mixing angles in the Higgs sector as well as couplings to fermions and gauge bosons are computed. At variance with the case of a single Higgs doublet, we find that pair production of SM-like Higgses, arising through dimension-six operators, is not fixed by fermion-fermion-Higgs couplings and can therefore be sizable.In this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a $Z_2$-invariant CP-conserving Higgs potential. The effects on Higgs and gauge boson masses, mixing angles in the Higgs sector as well as couplings to fermions and gauge bosons are computed. At variance with the case of a single Higgs doublet, we find that pair production of SM-like Higgses, arising through dimension-six operators, is not fixed by fermion-fermion-Higgs couplings and can therefore be sizable.arXiv:1608.00975CERN-TH-2016-157PSI-16-09CERN-TH-2016-157PSI-16-09oai:cds.cern.ch:22054662016-08-02
spellingShingle Particle Physics - Phenomenology
Crivellin, Andreas
Ghezzi, Margherita
Procura, Massimiliano
Effective Field Theory with Two Higgs Doublets
title Effective Field Theory with Two Higgs Doublets
title_full Effective Field Theory with Two Higgs Doublets
title_fullStr Effective Field Theory with Two Higgs Doublets
title_full_unstemmed Effective Field Theory with Two Higgs Doublets
title_short Effective Field Theory with Two Higgs Doublets
title_sort effective field theory with two higgs doublets
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP09(2016)160
http://cds.cern.ch/record/2205466
work_keys_str_mv AT crivellinandreas effectivefieldtheorywithtwohiggsdoublets
AT ghezzimargherita effectivefieldtheorywithtwohiggsdoublets
AT procuramassimiliano effectivefieldtheorywithtwohiggsdoublets

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