SCET 2023

Weak annihilation in non-leptonic B decays

28 Mar 2023, 11:30

20m

Room 310, Building 91 (Lawrence Berkeley National Lab)

Session 6

Speaker

Dr Philipp Böer (JGU Mainz)

Description

Exclusive non-leptonic $B$-meson decays provide a precision laboratory for tests of flavour-changing weak transitions.
While the factorization of the decay amplitude is well understood in the heavy-quark limit since more than two decades, very little is known so far about power-corrections.
One particular class of such suppressed effects are the so-called weak-annihilation topologies. With the recent advances in the theoretical
understanding of sub-leading power SCET, we investigate the factorization of these effects in the annihilation-dominated charmless decay $B_d\to K^{+}{K}^{-}$.

Presentation materials

Boeer.pdf