Cargando…

Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries

2-Higgs Doublet Models (2HDMs) typically need to invoke an ad-hoc discrete symmetry to avoid severe flavor bounds and in addition feature massless neutrinos, thus falling short of naturally complying with existing data. However, when augmented by an Abelian gauge symmetry naturally incorporating neu...

Descripción completa

Detalles Bibliográficos
Autores principales: Camargo, Daniel A., Delle Rose, Luigi, Moretti, Stefano, Queiroz, Farinaldo S.
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2622109
_version_ 1780958545395580928
author Camargo, Daniel A.
Delle Rose, Luigi
Moretti, Stefano
Queiroz, Farinaldo S.
author_facet Camargo, Daniel A.
Delle Rose, Luigi
Moretti, Stefano
Queiroz, Farinaldo S.
author_sort Camargo, Daniel A.
collection CERN
description 2-Higgs Doublet Models (2HDMs) typically need to invoke an ad-hoc discrete symmetry to avoid severe flavor bounds and in addition feature massless neutrinos, thus falling short of naturally complying with existing data. However, when augmented by an Abelian gauge symmetry naturally incorporating neutrino masses via a type-I seesaw mechanism while at the same time escaping flavor changing interactions, such enlarged 2HDMs become very attractive phenomenologically. In such frameworks, the distinctive element is the $Z'$ gauge boson generated by the spontaneous breaking of the Abelian group $U(1)_X$. In this work, we derive updated collider bounds on it. Several theoretical setups are possible, each with different and sometimes suppressed couplings to quarks and leptons. Thus, complementary data from dijet and dilepton resonance searches need to be considered to fully probe these objects. We employ the corresponding datasets as obtained at the Large Hadron Collider (LHC) at the 13 TeV CMs energy for $\mathcal{L}=12,36$ and $300$ fb$^{-1}$ of luminosity. Moreover, we present the potential sensitivity to such $Z'$s of the High Luminosity LHC (HL-LHC) and High Energy LHC (HE-LHC).
id cern-2622109
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-26221092019-11-04T14:58:40Zhttp://cds.cern.ch/record/2622109engCamargo, Daniel A.Delle Rose, LuigiMoretti, StefanoQueiroz, Farinaldo S.Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetrieshep-phParticle Physics - Phenomenology2-Higgs Doublet Models (2HDMs) typically need to invoke an ad-hoc discrete symmetry to avoid severe flavor bounds and in addition feature massless neutrinos, thus falling short of naturally complying with existing data. However, when augmented by an Abelian gauge symmetry naturally incorporating neutrino masses via a type-I seesaw mechanism while at the same time escaping flavor changing interactions, such enlarged 2HDMs become very attractive phenomenologically. In such frameworks, the distinctive element is the $Z'$ gauge boson generated by the spontaneous breaking of the Abelian group $U(1)_X$. In this work, we derive updated collider bounds on it. Several theoretical setups are possible, each with different and sometimes suppressed couplings to quarks and leptons. Thus, complementary data from dijet and dilepton resonance searches need to be considered to fully probe these objects. We employ the corresponding datasets as obtained at the Large Hadron Collider (LHC) at the 13 TeV CMs energy for $\mathcal{L}=12,36$ and $300$ fb$^{-1}$ of luminosity. Moreover, we present the potential sensitivity to such $Z'$s of the High Luminosity LHC (HL-LHC) and High Energy LHC (HE-LHC).arXiv:1805.08231oai:cds.cern.ch:26221092018
spellingShingle hep-ph
Particle Physics - Phenomenology
Camargo, Daniel A.
Delle Rose, Luigi
Moretti, Stefano
Queiroz, Farinaldo S.
Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title_full Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title_fullStr Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title_full_unstemmed Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title_short Collider Bounds on 2-Higgs Doublet Models with $U(1)_X$ Gauge Symmetries
title_sort collider bounds on 2-higgs doublet models with $u(1)_x$ gauge symmetries
topic hep-ph
Particle Physics - Phenomenology
url http://cds.cern.ch/record/2622109
work_keys_str_mv AT camargodaniela colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries
AT delleroseluigi colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries
AT morettistefano colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries
AT queirozfarinaldos colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries