# A puzzle in $B\to D^{+*}{\pi,K}$ decays: is it New Physics?

• Marzia Bordone (Turin INFN)
• Thursday 24 June 2021, 16:00-17:00
• Virtual Seminar .

Abstract: The determination of the branching fractions of non-leptonic B decays potentially suffers from large uncertainties. However, among the possible modes, the B → (D+\star) K and B_s → (D_s+\star) pi decays are the cleanest, and recent updates on the inputs needed to predict their branching fraction unveiled a ~ 4sigma discrepancy with respect to the current experimental measurements. A possible explanation of this puzzle is in terms of New Physics particles. In this presentation, I will review the theoretical progress that lead to this puzzle. I will then move to present possible simplified models that can accommodate this puzzle and the constraining power of high-pT data for these scenarios.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.