Resolving the muon g-2 and B Anomalies with Leptoquarks and a Dark Higgs Boson.

by Prof. Alakabha Datta (U. of Mississippi)

Tuesday Feb 4, 2020, 3:00 PM → 5:00 PM Pacific/Honolulu

420 (WAT)

At present there are outstanding discrepancies between
standard model predictions and measurements of the muon's g−2 and
several B meson properties. We resolve these anomalies by considering a
two-Higgs-doublet model extended to include leptoquarks and a dark Higgs
boson S. The leptoquarks modify B meson decays and also induce an
S\gamma \gamma coupling, which contributes to the muon's g−2 through a
Barr-Zee diagram. We show that, for TeV-scale leptoquarks and dark Higgs
boson masses mS∼10−200 MeV, a consistent resolution to all of the
anomalies exists. The model predicts interesting new decays, such as B
\to K(∗)e^+ e^-, B \ to K(∗)\gamma \gamma, K \to \pi \gamma gamma, and
Higgs \to \gamma \gamma \gamma \gamma, with branching fractions not far
below current bounds. I will also comment on the relevance of the model
to the recent KOTO anomaly.