Results 71 to 80 of about 1,432,146 (217)
FCNC-free multi-Higgs-doublet models from broken family symmetries [PDF]
Physics Letters B, 2019 We demonstrate how residual flavour symmetries, infrared signatures of symmetry breaking in complete models of flavour, can naturally forbid (or limit in a flavour specific way) flavour-changing neutral currents (FCNC) in multi-Higgs-doublet models (MHDM)
I. D. M. Varzielas, Jim Talbert
semanticscholar +1 more source
Benchmarking di-Higgs production in various extended Higgs sector models
Journal of High Energy Physics, 2022 We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal ...
Hamza Abouabid +6 more
doaj +1 more source
CP-violation, asymmetries and interferences in t t ¯ ϕ $$ t\overline{t}\phi $$
Journal of High Energy Physics, 2022 In this paper, we use the associated production of top-quark pairs ( t t ¯ $$ t\overline{t} $$ ) with a generic scalar boson (ϕ) at the LHC (pp → t t ¯ ϕ $$ t\overline{t}\phi $$ ) to explore the sensitivity of a large set of observables to the sign of ...
Duarte Azevedo +3 more
doaj +1 more source
The oblique parameters in multi-Higgs-doublet models [PDF]
Nuclear Physics B, 2008 18 pages, 5 ...
Grimus, W. +3 more
openaire +2 more sources
Higgs Decays into Leptons [PDF]
, 2002 We discuss the prospects for the discovery of neutral Higgs bosons ($\phi^0 = H^0, h^0, A^0$) in multi-Higgs doublet models via their decays into leptons at hadron colliders.
Balazs +13 more
core +3 more sources
CP violation in a model with Higgs triplets
Journal of High Energy Physics, 2023 We discuss CP-violation in a model with a real and a complex isospin triplet Higgs fields without introducing any symmetries except for the electroweak gauge symmetry.
Ting-Kuo Chen +2 more
doaj +1 more source
A More Flavored Higgs boson in Supersymmetric models [PDF]
, 2002 A More flavored Higgs boson arises when the flavor structure encoded in SUSY extensions of the SM is transmited to the Higgs sector. The flavor-Higgs transmition mechanism can have a radiative or mixing origin, as it is illustrated with several examples,
A. Antaramian +32 more
core +3 more sources
, 1999 Abstract The scalar sector of the standard model (SM) consists of only one doublet with weak hypercharge Y = 1/2. Most extensions of the SM include an enlargement of the Higgs sector. There are many theoretical motivations to enlarge the scalar sector of the standard electroweak theory, even if one only considers extensions of that ...
Gustavo Castelo Branco +2 more
openaire +1 more source
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 +3 more
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Scalar resonances in leptophilic multi-Higgs-boson models [PDF]
Physical Review D, 1999 We show that the Higgs resonance can be amplified in a 3-3-1 model with a multi-Higgs-boson ''lepto- philic'' scalar sector. This would allow the observation of the Higgs particle in muon colliders even for Higgs boson masses considerably higher than the ones expected to be seen in the electroweak standard model framework.
Montero, J. C., De, C. A., Pleitez, V.
openaire +3 more sources