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...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2019-06-01
|
Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319302813 |
id |
doaj-05c5d26c2dae43db8e792a1779d97ab2 |
---|---|
record_format |
Article |
spelling |
doaj-05c5d26c2dae43db8e792a1779d97ab22020-11-24T21:37:15ZengElsevierPhysics Letters B0370-26932019-06-01793150160Collider bounds on 2-Higgs doublet models with U(1)X gauge symmetriesDaniel A. Camargo0Luigi Delle Rose1Stefano Moretti2Farinaldo S. Queiroz3International Institute of Physics, Universidade Federal do Rio Grande do Norte, Campus Universitario, Lagoa Nova, Natal, RN 59078-970, Brazil; Corresponding author.INFN, Sezione di Firenze, and Dipartimento di Fisica ed Astronomia, Università di Firenze, Via G. Sansone 1, 50019 Sesto Fiorentino, ItalySchool of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, United KingdomInternational Institute of Physics, Universidade Federal do Rio Grande do Norte, Campus Universitario, Lagoa Nova, Natal, RN 59078-970, Brazil2-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 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).http://www.sciencedirect.com/science/article/pii/S0370269319302813 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniel A. Camargo Luigi Delle Rose Stefano Moretti Farinaldo S. Queiroz |
spellingShingle |
Daniel A. Camargo Luigi Delle Rose Stefano Moretti Farinaldo S. Queiroz Collider bounds on 2-Higgs doublet models with U(1)X gauge symmetries Physics Letters B |
author_facet |
Daniel A. Camargo Luigi Delle Rose Stefano Moretti Farinaldo S. Queiroz |
author_sort |
Daniel A. Camargo |
title |
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_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_sort |
collider bounds on 2-higgs doublet models with u(1)x gauge symmetries |
publisher |
Elsevier |
series |
Physics Letters B |
issn |
0370-2693 |
publishDate |
2019-06-01 |
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 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). |
url |
http://www.sciencedirect.com/science/article/pii/S0370269319302813 |
work_keys_str_mv |
AT danielacamargo colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries AT luigidellerose colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries AT stefanomoretti colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries AT farinaldosqueiroz colliderboundson2higgsdoubletmodelswithu1xgaugesymmetries |
_version_ |
1725937397189836800 |