Rare meson decays are among the most sensitive probes of both heavy and light new
physics. Among them, new physics searches using kaons benefit from their small total decay …

The LHCb Collaboration has recently released a new study of B+→ K+ ℓ+ ℓ-and B→ K* 0 ℓ+
ℓ-(ℓ= e, μ) decays, testing lepton universality with unprecedented accuracy using the whole …

A bstract The Fermilab Muon g− 2 experiment recently reported its first measurement of the
anomalous magnetic moment\({a} _ {\mu}^{\mathrm {FNAL}}\), which is in full agreement with …

We study a lepton portal dark matter model, motivated by the deviation of the W boson mass
reported by the CDF collaboration. We introduce vectorlike leptons and a scalar dark matter …

Significant deviations from the standard model are observed in semileptonic charged and
neutral-current B decays, the muon magnetic moment, and the extraction of the Cabibbo …

We study an extension of the minimal gauged L μ-L τ model including three right-handed
singlet fermions and a scalar doublet to explain the anomalous magnetic moments of muon …

A bstract We study perturbative unitarity constraints on generic Yukawa interactions where
the involved fields have arbitrary quantum numbers under an∏ i SU (N i)⊗ U (1) group. We …

The recent Fermilab measurement of the muon anomalous magnetic moment yields 4.2 σ
deviations from the SM prediction when combined with the BNL E821 experiment results. In …

The muon mass and the anomalous magnetic moment a μ are quantities which require
chirality flips, ie, transitions between left-and right-handed muons. Muon chirality flips are …

A bstract The measured branching fractions of B-mesons into leptonic final states derived by
the LHCb, Belle and BaBar collaborations hint towards the breakdown of lepton flavour …