Speakers
Jason Aebischer
(University of Zurich)
Jason Aebischer
(TUM)
Description
Applying an operator product expansion approach an updated Standard Model prediction of the Bc lifetime will be presented. The non-perturbative velocity expansion is carried out up to third order in the relative velocity of the heavy quarks. Scheme dependence is studied using three different mass schemes for the b and c quarks, resulting in three different values consistent with each other and with experiment. Furthermore, a novel way on how to compute the Bc lifetime from B and D meson lifetimes will be discussed in the talk.
Finally, since the Bc lifetime puts strong constraints on New Physcs (NP) models I will review the bounds on NP scenarios resulting from the updated computation of the Bc lifetime.
Author
Benjamin Grinstein
(Univ. of California San Diego (US))
