Results 81 to 90 of about 66,565 (179)
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 +2 more
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Composite 2-Higgs doublet model: strong effects on Higgs pair production
Journal of High Energy PhysicsWe show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs boson pair production at the Large Hadron Collider in both resonant and non-resonant mode.
Stefania De Curtis +5 more
doaj +1 more source
Flavour Invariants of Multi Higgs Models
In this work, a systematic way of analyzing the N Higgs Doublet Models flavor sector will be developed. We introduce a complete set of mixing matrices describing the rotation between certain suitably defined bases, akin to the Cabibbo-Kobayashi-Maskawa matrix, which describes the relation between the up-quark and down-quark mass bases. We point out the
Belas, João C., Silva, João P.
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Electroweak gauge invariant Higgs multiplets
Journal of High Energy PhysicsWe investigate the potential of general Higgs multiplets. We establish the domain of general Higgs multiplets within the context of the adjoint representation.
M. Maniatis
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Supersymmetric multi-Higgs doublet model with nonlinear electroweak symmetry breaking
Physical Review D, 2012 The electroweak symmetry is nonlinearly realized in an extension of the minimal supersymmetric standard model (MSSM) through an additional pair of constrained Higgs doublet superfields. The superpotential couplings of this constrained Higgs doublet pair to the MSSM Higgs doublet pair catalyze their vacuum expectation values.
Clark, T. E. +2 more
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SUSY and the Electroweak Phase Transition
, 1996 We analyze the effective 3 dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a $B+L$ asymmetry to survive in the ...
Abe +21 more
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Multi-Higgs doublet models with local $U(1)_H$ gauge symmetry and neutrino physics therein
, 2014 Multi-Higgs doublet models appear in many interesting extensions of the standard model (SM). But they suffer from Higgs-mediated flavor changing neutral current (FCNC) problem which is very generic.
Ko, P., Omura, Yuji, Yu, Chaehyun
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Phenomenological viability of string inspired multi-Higgs doublet models [PDF]
Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), 2007 4 pages, 3 figures, uses PoS style. Contribution to the proceedings of the International Europhysics Conference on High Energy Physics (HEP2005), Lisboa, Portugal, 21-27 July ...
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Multi-Higgs doublet models: the Higgs-fermion couplings and their sum rules
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 +3 more
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Flavour constraints on multi-Higgs-doublet models: Yukawa alignment [PDF]
Nuclear Physics B - Proceedings Supplements, 2010 In multi-Higgs-doublet models, the alignment in flavour space of all Yukawa matrices coupling to a given right-handed fermion guarantees the absence of tree-level flavour-changing neutral couplings, while introducing new sources of CP violation. With N Higgs doublets (and no right-handed neutrinos) the Yukawa Lagrangian is characterized by the fermion ...
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