Results 31 to 40 of about 1,432,146 (217)

Abelian symmetries in multi-Higgs-doublet models [PDF]

Journal of Physics A: Mathematical and Theoretical, 2012
N-Higgs doublet models (NHDM) are a popular framework to construct electroweak symmetry breaking mechanisms beyond the Standard model. Usually, one builds an NHDM scalar sector which is invariant under a certain symmetry group.
Accomando E, Branco G C, Branco G C, Evgeny Vdovin, Grimus W, Grimus W Ludl P O, Gunion J F, Igor P Ivanov, Ivanov I P, Ivanov I P Keus V, King S F, Maniatis M, Nagel F, Olaussen K, O’Neil D, Sartori G Valente G, Venus Keus   +16 more
core   +6 more sources

Symmetry and mass degeneration in multi-Higgs-doublet models [PDF]

Journal of High Energy Physics, 2011
20 pages.
Olaussen, Kåre, Osland, Per, Solberg, Marius Aase   +2 more
openaire   +8 more sources

Multi-Higgs doublet models: the Higgs-fermion couplings and their sum rules [PDF]

Journal of High Energy Physics, 2018
This is the second of a series of papers that explores the physical parameterization, sum rules and unitarity bounds arising from a non-minimal scalar sector of the Standard Model (SM) that consists of N Higgs doublets.
Miguel P. Bento, Howard E. Haber, J. C. Romão, João P. Silva   +3 more
doaj   +2 more sources

Yukawa sector of multi-Higgs-doublet models in the presence of Abelian symmetries [PDF]

Physical Review D, 2013
A general method for classifying the possible quark models of a multi-Higgs-doublet model, in the presence of Abelian symmetries, is presented.
Serodio, Hugo
core   +4 more sources

Mathematical Modelling and Intuition in Microbiology: A Perspective. [PDF]

Environ Microbiol
Mathematical modelling in microbiology converts verbal reasoning into internally consistent hypotheses that can provide testable predictions, infer hidden parameters, and generate transferable intuition. By selecting an appropriate level of description, researchers can connect data to explanatory principles.
Lopez JA, Erez A.
europepmc   +2 more sources

A CP-conserving multi-Higgs model without real basis

, 2016
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
Ivanov, I. P., Silva, Joao P.
core   +2 more sources

Family symmetries and alignment in multi-Higgs doublet models

Physics 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

Exploring multi-Higgs models with softly broken large discrete symmetry groups [PDF]

The European Physical Journal C, 2021
We develop methods to study the scalar sector of multi-Higgs models with large discrete symmetry groups that are softly broken. While in the exact symmetry limit, the model has very few parameters and can be studied analytically, proliferation of ...
I. D. M. Varzielas, Igor P. Ivanov, M. Levy   +2 more
semanticscholar   +1 more source

The General One-loop Structure for the LFV Higgs Decays Hr → lalb in multi-Higgs Models with Neutrino Masses [PDF]

International Journal of Modern Physics A, 2021
In this paper we present general formulae for the calculation of LFV Higgs decays $H_r \to l_a l_b$ at one-loop, with $H_r$ being part of the Higgs spectrum of a generic multi-scalar extension of the Standard Model (SM) with neutrino masses. We develop a
M. Zeleny-Mora, J. L. D'iaz-Cruz, O. F'elix-Beltr'an   +2 more
semanticscholar   +1 more source

Symmetry and decoupling in multi Higgs models [PDF]

Physical Review D, 2021
12 ...
Carrôlo, Sérgio, Romão, Jorge C., Silva, João P., Vazão, Francisco   +3 more
openaire   +3 more sources