Speaker
Kimberley Vos
(Universiteit Maastricht (NL))
Description
The determination of the CKM element Vcb from inclusive semileptonic
b → c semileptonic decays has reached a high precision thanks to a combination of theoretical and experimental efforts. Moreover, the long standing Vcb puzzle, a discrepancy between inclusive and exclusive determinations seems to be disappearing. In this talk, I will discuss the story of Vcb and how to continue towards even higher precision focusing on the inclusive determination. Specifically, I discuss two new strategies to improve the precision. The first is based on reparametrization invariances, which allows including higher power-suppressed terms in the heavy-quark expansion (HQE), the second is a method to control background effects using the HQE.
Author
Kimberley Vos
(Universiteit Maastricht (NL))
