Precision flavour physics from semileptonic B decays: status and challenges.

by Nikolai Uraltsev (Siegen University and PNPI, Gatchina)

Thursday 11 Mar 2010, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

Semileptonic B decays link to the accurate values of V_cb and V_ub driving critical flavour phenomena in the SM. There have been recent progress on both the theoretical and experimental side. I describe theoretical improvements and argue that both inclusive decays and B->D^* l\nu, B->D l\nu yield very consistent values of V_cb, higher than using the input from lattice simulations. The situation in V_ub extraction is presently more controversial.