Results 31 to 40 of about 303,433 (206)

CP violation in multi-Higgs supersymmetric models [PDF]

open access: yesNuclear Physics B, 1996
We consider supersymmetric extensions of the standard model with two pairs of Higgs doublets. We study the possibility of spontaneous $CP$ violation in these scenarios and present a model where the origin of $CP$ violation is soft, with all the complex phases in the Lagrangian derived from complex masses and vacuum expectation values (VEVs) of the ...
Masip, Manuel, Rasin, Andrija
openaire   +2 more sources

3HDM with ∆(27) symmetry and its phenomenological consequences

open access: yesJournal of High Energy Physics, 2023
We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global ∆(27) discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group ...
J. Kalinowski   +3 more
doaj   +1 more source

First look at the physics case of TLEP [PDF]

open access: yes, 2013
The discovery by the ATLAS and CMS experiments of a new boson with mass around 125 GeV and with measured properties compatible with those of a Standard-Model Higgs boson, coupled with the absence of discoveries of phenomena beyond the Standard Model at ...
E. Lançon   +588 more
core   +1 more source

The invariant space of multi-Higgs doublet models [PDF]

open access: yesJournal of High Energy Physics, 2021
Abstract In a model with more than one scalar doublet, the parameter space encloses both physical and unphysical information. Invariant theory provides a detailed description of the counting and characterization of the physical parameter space. The Hilbert series for the 3HDM is computed for the first time using partition analysis,
openaire   +3 more sources

CP violation in a model with Higgs triplets

open access: yesJournal of High Energy Physics, 2023
We discuss CP-violation in a model with a real and a complex isospin triplet Higgs fields without introducing any symmetries except for the electroweak gauge symmetry.
Ting-Kuo Chen   +2 more
doaj   +1 more source

Numerical studies of composite Higgs models [PDF]

open access: yes, 2023
The Standard Model (SM) of particle physics describes the strong and electro-weak interactions with remarkable accuracy. Despite its success open questions, such as the Naturalness problem of the Higgs boson’s mass, suggest that the SM has to be ...
Lupo, Alessandro
core   +1 more source

CP-violation, asymmetries and interferences in t t ¯ ϕ $$ t\overline{t}\phi $$

open access: yesJournal of High Energy Physics, 2022
In this paper, we use the associated production of top-quark pairs ( t t ¯ $$ t\overline{t} $$ ) with a generic scalar boson (ϕ) at the LHC (pp → t t ¯ ϕ $$ t\overline{t}\phi $$ ) to explore the sensitivity of a large set of observables to the sign of ...
Duarte Azevedo   +3 more
doaj   +1 more source

Benchmarking di-Higgs production in various extended Higgs sector models

open access: yesJournal of High Energy Physics, 2022
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal ...
Hamza Abouabid   +6 more
doaj   +1 more source

Collider phenomenology of new neutral scalars in a flavored multi-Higgs model

open access: yesPhysical Review D, 2023
In this work, we propose and explore for the first time a new collider signature of heavy neutral scalars typically found in many distinct classes of multi-Higgs models. This signature, particular relevant in the context of the Large Hadron Collider (LHC) measurements, is based on a topology with two charged leptons and four jets arising from first and
Ferreira, Pedro   +5 more
openaire   +5 more sources

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

open access: yesJournal of High Energy Physics, 2014
38 pages, 14 ...
Dermíšek, Radovan   +3 more
openaire   +2 more sources

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