Speaker
Méril Reboud
(TUM)
Description
We parametrize nonlocal contributions in $b\to s\ell\ell$ transitions using a $z$-expansion fitted on theory inputs steaming from a light-cone operator product expansion and experimental measurements. This approach allows us to update the Standard Model predictions of experimental observables in the $B\to K\ell\ell$, $B \to K^*\ell\ell$ and $B_s\to\phi\ell\ell$, with a unprecedented control on the hadronic uncertainties. We finally use these predictions for a new physics fit, confirming the discrepancy of these channels with respect to the Standard Model.
Authors
Danny van Dyk
(TU München)
Méril Reboud
(TUM)
Javier Virto
Nico Gubernari
(technische universität münchen)