Speaker
Alexander Ermakov
(Bonn)
Description
In this talk I give an experimental review of the current status of
|V_ub| determinations. Precision measurements of charmless semileptonic
B-decays allow for a determination of the magnitude of the CKM matrix
element V_ub, for a test of the consistency of the CKM mechanism and
potentially of NP scenarios.
In this talk the various experimental methods to determine |V_ub| based
on exclusive and inclusive measurements using tagged and untagged data
samples are presented.
The various contributions to the uncertainties on the |V_ub|
measurements and the persistent disagreement between excl. and incl.
|V_ub| results are discussed.
