Speaker
Alexei Bazavov
(Brookhaven National Laboratory)
Description
We present the results of our recent calculations of the hadronic form factors for semileptonic decays of B mesons and the matrix elements of local operators contributing to neutral B and Bs meson mixing. From joint fits of the lattice results and the experimental data we are able to determine the magnitude of the CKM matrix elements Vub and Vcb, and also (with Vtb as an additional input) the matrix elements Vtd and Vts. These calculations were performed on 2+1 flavor MILC asqtad configurations with the Fermilab Wilson clover action for the charm and bottom quarks. The variety of lattice spacings and sea and valence quark masses allows for controlled continuum and chiral extrapolations.
Primary author
Alexei Bazavov
(Brookhaven National Laboratory)
