scholarly journals Muon flavor violation in two-Higgs-doublet model with extra Yukawa couplings

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Wei-Shu Hou ◽  
Girish Kumar
Keyword(s):  
Higgs Doublet ◽  
Yukawa Couplings ◽  
Flavor Violation ◽  
Doublet Model ◽  
Two Higgs Doublet Model

Running of the Yukawa Couplings in a Two Higgs Doublet Model

2008 ◽  
Author(s):  
J. H. Montes de Oca Y. ◽  
S. R. Juárez W. ◽  
P. Kielanowski ◽  
Heriberto Castilla-Valdez ◽  
Omar Miranda ◽  
...  
Keyword(s):  
Higgs Doublet ◽  
Yukawa Couplings ◽  
Doublet Model ◽  
Two Higgs Doublet Model

Electroweak unification of Yukawa Couplings in the Extension of the Two Higgs Doublet Model

2011 ◽  
Author(s):  
D. Morales C. ◽  
S. R. Juárez W. ◽  
P. Kielanowski ◽  
Alejandro Ayala ◽  
Guillermo Contreras ◽  
...  
Keyword(s):  
Higgs Doublet ◽  
Yukawa Couplings ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals SCALAR–PSEUDOSCALAR INTERACTIONS IN NEUTRINO–ELECTRON SCATTERING

2013 ◽  
Vol 28 (25) ◽  
pp. 1350124 ◽  
Author(s):  
R. GAITÁN ◽  
E. A. GARCES ◽  
O. G. MIRANDA ◽  
J. H. MONTES DE OCA Y
Keyword(s):  
Electron Scattering ◽  
Phenomenological Approach ◽  
Higgs Doublet ◽  
Charged Scalar ◽  
Yukawa Couplings ◽  
General Scalar ◽  
Pseudoscalar Coupling ◽  
Mixing Matrix ◽  
Doublet Model ◽  
Two Higgs Doublet Model

Many extensions to the Standard Model imply the existence of new charged scalar Higgs bosons. We study the contribution of a general scalar or pseudoscalar coupling for the neutrino–electron scattering. We take a phenomenological approach in order to obtain model independent limits to the couplings that arise in this picture. We illustrate the reach of the constraints by studying the particular case of the type III two Higgs doublet model, where we have found new constraints to some elements of the Yukawa couplings mixing matrix (|Yee| ≤ 1 × 10-1 and |Yeμ| ≤ 7 × 10-2 at 90% CL).

scholarly journals The muon g – 2 for low-mass pseudoscalar Higgs in the general 2HDM

2018 ◽  
Vol 179 ◽  
pp. 01022
Author(s):  
Adriano Cherchiglia ◽  
Dominik Stöckinger ◽  
Hyejung Stöckinger-Kim
Keyword(s):  
Large Deviation ◽  
Higgs Doublet ◽  
Type Ii ◽  
Parameter Region ◽  
Yukawa Couplings ◽  
The Standard Model ◽  
Low Mass ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Theory And Experiment

The two-Higgs doublet model is a simple and attractive extension of the Standard Model. It provides a possibility to explain the large deviation between theory and experiment in the muon g – 2 in an interesting parameter region: light pseudoscalar Higgs A, large Yukawa coupling to τ-leptons, and general, non-type II Yukawa couplings are preferred. This parameter region is explored, experimental limits on the relevant Yukawa couplings are obtained, and the maximum possible contributions to the muon g – 2 are discussed.

scholarly journals Explaining Atomki anomaly and muon g − 2 in U(1)X extended flavour violating two Higgs doublet model

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Takaaki Nomura ◽  
Prasenjit Sanyal
Keyword(s):  
Higgs Doublet ◽  
Scalar Boson ◽  
Parameter Region ◽  
Yukawa Couplings ◽  
Charge Assignment ◽  
Light Scalar ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Scalar Sector ◽  
Lepton Flavour

Abstract We investigate a two Higgs doublet model with extra flavour depending U(1)X gauge symmetry where Z′ boson interactions can explain the Atomki anomaly by choosing appropriate charge assignment for the SM fermions. For parameter region explaining the Atomki anomaly we obtain light scalar boson with $$ \mathcal{O} $$ O (10) GeV mass, and we explore scalar sector to search for allowed parameter space. We then discuss anomalous magnetic dipole moment of muon and lepton flavour violating processes induced by Yukawa couplings of our model.

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