Results 21 to 30 of about 66,565 (179)

Discrete and continuous symmetries in multi-Higgs-doublet models [PDF]

open access: yesPhysical Review D, 2008
13 pages, RevTex, references ...
Ferreira, P. M., Silva, Joao P.
openaire   +3 more sources

A new avenue to charged Higgs discovery in multi-Higgs models [PDF]

open access: yesJournal of High Energy Physics, 2014
Current searches for the charged Higgs at the LHC focus only on the $ $, $cs$, and $tb$ final states. Instead, we consider the process $pp\to \to W^\pm H^\mp \to W^+ W^- A$ where $ $ is a heavy neutral Higgs boson, $H^\pm$ is a charged Higgs boson, and $A$ is a light Higgs boson, with mass either below or above the $b\bar{b}$ threshold. The cross-
Dermíšek, Radovan   +3 more
openaire   +4 more sources

FCNCs in supersymmetric multi-Higgs doublet models [PDF]

open access: yes, 2005
30 pages, 9 figures. Comments and references added.
Escudero, N., Munoz, C., Teixeira, A. M.
openaire   +3 more sources

A precision constraint on multi-Higgs-doublet models [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2008
We derive a general expression for Delta rho (or, equivalently, for the oblique parameter T) in the SU(2) x U(1) electroweak model with an arbitrary number of scalar SU(2) doublets, with hypercharge +-1/2, and an arbitrary number of scalar SU(2) singlets.
Grimus, Walter   +3 more
openaire   +5 more sources

A CP-conserving multi-Higgs model without real basis

open access: yes, 2015
Models beyond the Standard Model (bSM) often involve elaborate Higgs sectors, which can be a source of CP-violation. It brings up the question of recognizing in an efficient way whether a model is CP-violating. There is a diffuse belief that the issue of explicit CP invariance can be linked to the existence of a basis in which all coefficients are real;
Ivanov, I. P., Silva, Joao P.
openaire   +3 more sources

Two Higgs Doublets, a 4th Generation and a 125 GeV Higgs: A Review [PDF]

open access: yesAdvances in High Energy Physics, 2013
We review the possible role that multi-Higgs models may play in our understanding of the dynamics of a heavy 4th sequential generation of fermions. We describe the underlying ingredients of such models, focusing on two Higgs doublets, and discuss how ...
Shaouly Bar-Shalom   +3 more
doaj   +4 more sources

Family symmetries and alignment in multi-Higgs doublet models

open access: yesPhysics Letters B, 2011
The exact alignment of the Yukawa structures on multi-Higgs doublet models provides cancellation of tree-level flavour changing couplings of neutral scalar fields. We show that family symmetries can provide a suitable justification for the Yukawa alignment.
Ivo de Medeiros Varzielas
openaire   +4 more sources

Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM

open access: yesJournal of High Energy Physics, 2023
Determining if the SM-like Higgs is part of an extended Higgs sector is the most important question to be asked after discovery. A light charged Higgs boson with mass smaller than the sum of top and bottom quarks is naturally allowed in Type-I two Higgs ...
Disha Bhatia   +2 more
doaj   +1 more source

The general Two-Higgs Doublet Model in a gauge-invariant form

open access: yesJournal of High Energy Physics, 2022
In the general Two-Higgs Doublet Model it has been shown that the Higgs potential can be expressed in terms of gauge-independent quantities that transform covariantly under unitary mixing of the doublets.
L. Sartore   +3 more
doaj   +1 more source

Exploring wrong sign scenarios in the Yukawa-Aligned 2HDM

open access: yesJournal of High Energy Physics, 2023
We discuss scenarios with wrong-sign (WS) Yukawa couplings for the discovered Higgs boson in the Yukawa-aligned two Higgs doublet model. In the WS scenario, Yukawa couplings for down-type quarks and/or charged leptons have an opposite sign as compared to
Shinya Kanemura   +2 more
doaj   +1 more source

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