This adds a 3rd dimension to the $HFlav plot http://www.slac.stanford.edu/xorg/hflav/semi/fpcp17/r_dtaunu/rdrds_fpcp2017.png obtained with decays to D and D* mesons. There is a 4-sigma discrepancy there. The Bc meson adds a 3sigma effect. #LeptonUniversality #FlavourPhysics

Another puzzling measurement yielding more b->cτν than b->cμν transitions, compared to what the Standard Model expects. For the first time the measurement uses Bc mesons. #LeptonUniversality #FlavourPhysics

Tired, but a lot of fun, with many friends and a lot of physics. First edition of the Flavour Physics School at #LHC was (IMHO) a success! Thanks again to the other organisers (especially #MarziaBordone) and the speakers.
Looking forward to the next edition! @cern.bsky.social #FlavourPhysics #HEP

The most popular New Physics models to explain these discrepancies and those observed in b->s transitions are #leptoquarks, which could be seen directly at the LHC. But there are other possibilities. #LeptonUniversality #FlavourPhysics