Jan 10 – 14, 2022
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Europe/London timezone

The Bc lifetime in the Standard Model and beyond

Jan 10, 2022, 4:18 PM
Online only

Online only


Jason Aebischer (University of Zurich) Jason Aebischer (TUM)


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.

Primary author

Benjamin Grinstein (Univ. of California San Diego (US))

Presentation materials