Speaker
Dr
Kristopher Healey
(Università di Torino)
Description
Including the recently computed O(α ΛQCD^2}/mb^2) corrections, we perform an extraction of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vcb and the most relevant parameters of the heavy quark expansion from the data of inclusive semileptonic B decays. Using a recent determination of the charm quark mass, we obtain |Vcb|=(42.21±0.78)×10^{-3} and the bottom quark mass in the kenitic scheme at 1 GeV of mb =(4.553±0.020) GeV. We also perform and discuss a careful estimate of the residual theoretical uncertainty.
Authors
Dr
Kristopher Healey
(Università di Torino)
Paolo Gambino
(Università di Torino)
Co-authors
Andrea Alberti
(Università di Torino)
Soumitra Nandi
(Università di Torino)
