Seminars

A composite model for B decay anomalies and dark matter

by Prof. James Cline (McGill University)

Tuesday, 24 October 2017 from to (Europe/Vienna)
at HEPHY ( Library )
Description
The LHCb experiment has found tentative evidence for the breakdown of lepton flavor universality in decays of neutral B mesons to K (or K^*) plus leptons.  Exchange of a heavy leptoquark is one way to explain the observations.  I present a simple model where the leptoquark, along with heavy quark and lepton partners and a TeV-scale dark matter candidate, arise from strong interactions of a new SU(N) confining gauge interaction. The model predicts other flavor-changing rare processes, direct detection of the dark matter, and production of the heavy states at LHC.  It can also explain the anomalous magnetic moment of the muon if the new confinement scale is ~100 GeV.
Material: