6533b862fe1ef96bd12c6bec
RESEARCH PRODUCT
Minimal Leptoquark Explanation for theRD(*),RK, and(g−2)μAnomalies
Matthias NeubertMatthias NeubertMartin Bauersubject
PhysicsParticle physicsMuonAnomalous magnetic dipole moment010308 nuclear & particles physicsPhysics beyond the Standard ModelHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyDown quarkElementary particleQuantum number01 natural sciences0103 physical sciencesHigh Energy Physics::ExperimentLeptoquark010306 general physicsLeptondescription
We show that by adding a single new scalar particle to the standard model, a TeV-scale leptoquark with the quantum numbers of a right-handed down quark, one can explain in a natural way three of the most striking anomalies of particle physics: the violation of lepton universality in B[over ¯]→K[over ¯]l^{+}l^{-} decays, the enhanced B[over ¯]→D^{(*)}τν[over ¯] decay rates, and the anomalous magnetic moment of the muon. Constraints from other precision measurements in the flavor sector can be satisfied without fine-tuning. Our model predicts enhanced B[over ¯]→K[over ¯]^{(*)}νν[over ¯] decay rates and a new-physics contribution to B_{s}-B[over ¯]_{s} mixing close to the current central fit value.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-04-08 | Physical Review Letters |