Results 21 to 30 of about 66,560 (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

FCNCs in supersymmetric multi-Higgs doublet models [PDF]

, 2005
We conduct a general discussion of supersymmetric models with three families in the Higgs sector. We analyse the scalar potential, and investigate the minima conditions, deriving the mass matrices for the scalar, pseudoscalar and charged states ...
A. Brignole, A. M. Teixeira, C. Muñoz, J. A. Aguilar-Saavedra, N. Escudero   +4 more
core   +2 more sources

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

Journal 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, Lavoura, Luis, Ogreid, O M, Osland, P   +3 more
openaire   +5 more sources

The oblique parameters in multi-Higgs-doublet models [PDF]

Nuclear Physics B, 2008
18 pages, 5 ...
Grimus, W., Lavoura, L., Ogreid, O. M., Osland, P.   +3 more
openaire   +4 more sources

Multi-Higgs Models: model building, phenomenology and renormalization [PDF]

, 2021
PhD thesis.
Duarte Fontes
openaire   +3 more sources

The flavor puzzle in multi-Higgs models [PDF]

Journal of High Energy Physics, 2010
We reconsider the flavor problem in the models with two Higgs doublets. By studying two generation toy models, we look for flavor basis independent constraints on Yukawa couplings that will give us the mass hierarchy while keeping all Yukawa couplings of
AK Das, Alexey A. Petrov, Andrew E. Blechman, C Amsler, CD Froggatt, D Atwood, E Golowich, E Ma, FJ Botella, G Asatrian, Gagik Yeghiyan, GC Branco, GM Asatryan, H Fritzsch, H Fritzsch, H Fritzsch, H Fritzsch, H Georgi, HE Haber, JA Bagger, JF Gunion, JL Diaz-Cruz, KG Chetyrkin, KS Babu, L Lavoura, M Bona, O Gedalia, R Friedberg, R-M Xu, S Davidson, S-L Chen, SP Martin, T Araki, T Araki, TP Cheng, Y Grossman   +35 more
core   +2 more sources

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

Physics Letters B, 2010
Within multi-Higgs-doublet models, one can impose symmetries on the Higgs potential, either discrete or continuous, that mix several doublets. In two-Higgs-doublet model any such symmetry can be conserved or spontaneously violated after the electroweak ...
Accomando, Balents, Davidson, Davidson, Ferreira, Ferreira, Grimus, Gupta, Igor P. Ivanov, Ivanov, Ivanov, Ivanov, Ludl, Maniatis, Maniatis, Maniatis, Nishi, Normand, Olaussen, Ramirez, Venus Keus   +20 more
core   +4 more sources

Multi-Higgs-doublet models and singular alignment [PDF]

Journal of High Energy Physics, 2019
We consider a 4-Higgs-doublet model in which each Higgs doublet gives mass to one of the fermion sets {m t }, {m b , m τ , m c }, {m μ , m s }, and {m d , m u , m e }. The sets have the feature that within each of them the masses are similar.
Werner Rodejohann, Ulises Saldaña-Salazar   +1 more
doaj   +4 more sources

Symmetries for SM Alignment in multi-Higgs Doublet Models [PDF]

Physical Review D, 2016
We derive the complete set of continuous maximal symmetries for Standard Model (SM) alignment that may occur in the tree-level scalar potential of multi-Higgs Doublet Models, with $n > 2$ Higgs doublets.
Pilaftsis, Apostolos
core   +3 more sources

Radiative corrections to Higgs couplings with weak gauge bosons in custodial multi-Higgs models

, 2017
We calculate 1-loop radiative corrections to the $hZZ$ and $hWW$ couplings in models with next--to--simplest Higgs sectors satisfying the electroweak $\rho$ parameter equal to 1 at tree level: the Higgs singlet model, the two-Higgs doublet models, and ...
Chiang, Cheng-Wei, Kuo, An-Li, Yagyu, Kei   +2 more
core   +3 more sources