Abstract
Abstract
In this article we study b → sμ
+
μ
− transitions and possible correlations with the anomalous magnetic moment of the muon (a
μ
) within two-Higgs-doublet models with generic Yukawa couplings, including the possibility of right-handed neutrinos. We perform the matching on the relevant effective Hamiltonian and calculate the leading one-loop effects for b → sℓℓ
(′), b → sγ, ΔB = ΔS = 2,
$$ b\to s\nu \overline{v} $$
b
→
s
ν
v
¯
and ℓ → ℓ′γ transitions in a general R
ξ
gauge. Concerning the phenomenology, we find that an explanation of the hints for new physics in b → sμ
+
μ
− data is possible once right-handed neutrinos are included. If lepton flavour violating couplings are allowed, one can account for the discrepancy in a
μ
as well. However, only a small portion of parameter space gives a good fit to b → sμ
+
μ
− data and the current bound on h → τμ requires the mixing between the neutral Higgses to be very small if one aims at an explanation of a
μ
.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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