Flavor Constraints on New Physics

Understand

This talk highlights, from a theoretical point of view, some recent exciting results in flavor physics, as well as future prospects.

• We discuss possible implications of a subset of the experimental results in tension with the standard model, such as the $4\sigma$ deviation in the $B\to D^{(*)}\tau\bar\nu$ decay rates, and recent improvements in the constraints on axion portal dark matter models.
• We use the examples of constraining new physics contributions to neutral meson mixing and the search for possible vector-like fermions to illustrate the expected progress over the next decade to increase the sensitivity to new physics at shorter distance scales.
• We also speculate about the ultimate limitations of (quark) flavor physics probes of new physics.