Speaker
Biplap Dey
Description
We present results on the first full 4-dimensional angular analysis of B->Dlnu, using the e+e- collision dataset collected by the BaBar experiment at the Y(4S) resonance. One B meson from the Y(4S)->BBbar decay is fully reconstructed in a hadronic decay mode which constrains the kinematics and provides a precise determination of the neutrino momentum vector. We extract the underlying hadronic form-factors employing the model-independent BGL approach and a value for the CKM matrix element Vcb. Last, employing our measured BGL form-factors, we provide new predictions within the Standard Model, for observables related to the the semi-tauonic decay B->Dtaunu.