Within the model based on the SU(2) L ϫSU(2) R ϫU(1) BϪL gauge group and having a bidoublet and two triplets of the Higgs fields ͑left-right model͒, the Higgs sector impact on the value of the muon anomalous magnetic moment ͑AMM͒ is considered. The contributions coming from the doubly charged Higgs bosons, the singly charged Higgs bosons, and the lightest neutral Higgs boson are taken into account. The obtained value of the muon AMM is a function of the Higgs boson masses and the Higgs boson coupling constants ͑CC's͒. We express the largest part of the CC's as a function of the heavy neutrino sector parameters. We show that at the particular parameter values the model under study could explain the BNL 2000 result.
The solar neutrino oscillations are considered within the left right model and the general two Higgs doublet model. The study makes it apparent that the interactions between leptons and the physical Higgs bosons could significantly influence the oscillations pattern. To estimate the corrections to the solar matter potential compared to the standard model the constraints on the Yukawa couplings constants and the Higgs boson masses are found.
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