Flavor violating Higgs signals, such as the top FCNC decay t → ch 0 and the LFV Higgs decay h 0 → τ µ, have been studied at the LHC. These signals can arise within the general Two-Higgs doublet model (THDM), where each Higgs doublet couples to all fermions types through Yukawa matrices Y f 1 and Y f 2 . The Yukawa matrices can be assumed to have the same form or they could have different structures. In this paper we study the case when both Y f 1 and Y f 2 have completely different forms, but in such a way that they complement to produce a specific hermitian mass matrix. We find that for specific four-zero textures, the Flavor Violating Higgs couplings depend only on the free parameters tan β, γ f and the fermion masses. We use the current bounds on the low energy processes, to derive constraints on the Heavy Higgs boson mass, tan β and γ f . Then, we use these constraints to evaluate the LFV Higgs decays, which reach Branching ratios that could be tested at the LHC.
We study the magnetic and weak magnetic dipole moments of charged leptons in the framework of the Two Higgs Doublet Model type III (THDM-III) with four zero textures. We first analyze the possibility that the discrepancy between the experimental measurements and the theoretical prediction of the muon anomalous magnetic dipole moment (aµ) in the Standard Model (SM) can be explained in the context of the model and then find values for the parameters of the THDM-III: neutral and charged Higgs boson masses (mH , m H ± ), mixing angles (α, β), CP-violating angles θ1, θ2 and an additional parameter arising from the mass matrix (γ f ), for which a correspondence between theory and experiment is possible. We use a T HDM −III µ and current low energy processes K −K mixing, B 0 s → µμ, τ → µµμ, µ → eeē, τ → µγ, τ → eγ, µ → eγ, b → sγ, B → D(D * )τ ν and the rare higgs decay h → τ µ in order to determine the allowed parameter space of THDM-III and from these we give a prediction for the magnetic and weak magnetic dipole moment of charged leptons, in particular of the τ lepton. The obtained magnetic dipole moment of the τ lepton is of the order of O(10 −8 − 10 −7 ) and the weak magnetic is of the order O(10 −10 − 10 −7 ).
Using the massive helicity formalism, we calculate the five-body average square amplitude of the decays [Formula: see text] [Formula: see text] within the Standard Model (SM), we then introduce a dimension-five effective vertex [Formula: see text] in order to determine the feasibility of imposing limits on the tau anomalous magnetic dipole moment [Formula: see text] via the current or future experimental measurements of the branching ratio for the decay [Formula: see text].
The NOνA is a long base-line neutrino oscillation experiment. It will study the oscillations between muon and electron neutrinos through the Earth. NOνA consists of two detectors separated by 810 km. Each detector will measure the electron neutrino content of the neutrino (NuMI) beam. Differences between the measurements will reveal details about the oscillation channel. The NOνA collaboration built a prototype detector on the surface at Fermilab in order to develop calibration, simulation, and reconstruction tools, using real data. This 220 ton detector is 110 mrad off the NuMI beam axis. This off-axis location allows the observation of neutrino interactions with energies around 2 GeV, where neutrinos come predominantly from charged kaon decays. During the period between October 2011
We explore the phenomena of flavor violation, using combinations of Yukawa matrices in order to reproduce a hermitian mass matrix. We work within the Two-Higgs doublet model with a specific four-zero texture type (2HDM-Tx). Current experimental bounds from K−K mixing, Bs → μ + μ − and τ → 3μ are used in order to restrict the values for the parameters model: tan β(= v 2 v 1) and γ (0 < γ < 1). We predict the rates for the Flavor Violating decays (h → τ μ) and t → c + h, which reach Branching ratios that could be tested at the LHC.
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