Results 11 to 20 of about 66,560 (217)
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
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Geometrical CP violation in multi-Higgs models [PDF]
Journal of High Energy Physics, 2012 We introduce several methods to obtain calculable phases with geometrical values that are independent of arbitrary parameters in the scalar potential.
A Bovier +12 more
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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
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CP violation in multi-Higgs supersymmetric models [PDF]
Nuclear Physics B, 1995 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 ...
Altarev +39 more
core +6 more sources
Symmetry and decoupling in multi Higgs models [PDF]
Physical Review D, 2021 12 ...
Carrôlo, Sérgio +3 more
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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., Pilaftsis, A.
openaire +4 more sources
Symmetries in multi-Higgs-doublet models [PDF]
, 2012 We report the recent progress in understanding of symmetries which can be implemented in the scalar sector of electroweak symmetry breaking models with several Higgs doublets. In particular we present the list of finite reparametrization symmetry groups which can appear in the three-Higgs-doublet models.
Ivanov, Igor, Vdovin, Evgeny
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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
Buchmuller W. +7 more
core +6 more sources
Minimal flavour violation and multi-Higgs models
Physics Letters B, 2010 We propose an extension of the hypothesis of Minimal Flavour Violation (MFV) to general multi-Higgs Models without the assumption of Natural Flavour Conservation in the Higgs sector. We study in detail under what conditions the neutral Higgs couplings are only functions of $V_{CKM}$ and propose a MFV expansion for the neutral Higgs couplings to ...
Botella, F J, Branco, G C, Rebelo, M N
openaire +6 more sources
Nullification of multi-Higgs threshold amplitudes in the standard model [PDF]
Physics Letters B, 1993 We show that nullification of all tree-order threshold amplitudes involving Higgs particles in the Standard Model occurs, provided that certain equations relating the masses of all existing elementary particles to the mass of the Higgs scalar are satisfied.
Argyres, E. N. +2 more
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