Results 11 to 20 of about 1,717 (172)
Nondecoupling in multi-Higgs doublet models [PDF]
European Physical Journal C: Particles and Fields, 2020 We consider models with any number of Higgs doublets and study the conditions for decoupling. We show that, under very general circumstances, all the quadratic coefficients of the scalar potential must be present, except in special cases, which include ...
Francisco Faro +2 more
doaj +3 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 +1 more
doaj +4 more sources
Flavour alignment in multi-Higgs-doublet models [PDF]
Journal of High Energy Physics, 2017 Extended electroweak scalar sectors containing several doublet multiplets require flavour-aligned Yukawa matrices to prevent the appearance at tree level of unwanted flavour-changing neutral-current transitions. We analyse the misalignment induced by one-
Ana Peñuelas, Antonio Pich
doaj +3 more sources
Symmetry and decoupling in multi Higgs models [PDF]
Physical Review D, 2021 12 ...
Carrôlo, Sérgio +3 more
openaire +3 more sources
Family Symmetries and Multi Higgs Doublet Models [PDF]
Symmetry, 2020 Imposing a family symmetry on the Standard Model in order to reduce the number of its free parameters, due to the Schur’s Lemma, requires an explicit breaking of this symmetry. To avoid the need for this symmetry to break, additional Higgs doublets can be introduced.
Bartosz Dziewit +3 more
openaire +5 more sources
Natural Alignment in Multi-Higgs Doublet Models [PDF]
Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019), 2020 CORFU2019 Proceeding, 21 pages, 6 figures and 2 ...
Darvishi, N. +1 more
openaire +3 more sources
LEPTOGENESIS IN MODELS WITH MULTI-HIGGS BOSONS [PDF]
Modern Physics Letters A, 2002 We study the leptogenesis scenario in models with multi-Higgs doublets. It is pointed out that the washing-out process through the effective dimension-five interactions, which has not been taken into account seriously in the conventional scenario, can be effective, and the resultant baryon asymmetry can be exponentially suppressed.
Fukuyama, Takeshi, Okada, Nobuchika
openaire +2 more sources
CP violation in a multi higgs doublet model [PDF]
Pramana, 1995 17 pages + one figure, Revtex.
Deshpande, N. G., He, Xiao-Gang
openaire +2 more sources
The flavor puzzle in multi-Higgs models [PDF]
Journal of High Energy Physics, 2010 26 pages, typos are corrected, references are added, the final ...
Blechman, Andrew E. +2 more
openaire +2 more sources
Constraining multi-Higgs flavour models [PDF]
The European Physical Journal C, 2014 13 pages, 3 figures, title and abstract changed, comments and references added; matches version to appear in The European Physical Journal ...
González Felipe, Ricardo +4 more
openaire +4 more sources