1. Introduction --------------- All results and input files are available at http://www.slac.stanford.edu/xorg/hfag/semi/winter06/winter06.shtml In the following (in no particular order), the updates for Winter 2006 with respect to EPS 2005 (web update) are discussed. 2. Changes to common parameters ------------------------------- We use the updated input parameters for mixing and lifetimes from the HFAG winter 2006 update (common.param). 3. New measurements ------------------- Measurements that moved from preliminary to published status include - Belle inclusive Vub Mx hep-ex/0505088 --> Phys.Rev.Lett.95:241801,2005 - BABAR inclusive Vub elq2 hep-ex/0506036 --> Phys.Rev.Lett.95:111801,2005 - BABAR inclusive Vub endpoint hep-ex/0408075 --> Phys.Rev.D73:012006,2006 - BABAR exclusive Vub untagged hep-ex/0507003 --> Phys .Rev. D72, 051102 (2005) The BABAR endpoint analysis has been in published One new published measurement of BF(B+/B0 -> X l nu : p > 0.6 GeV/c) is used, namely (Belle) Phys.Lett.B614:27-,2005. 4. New method for extracting the inclusive Vub average ---------------------------- We introduce a new framework to calculate the inclusive Vub average, Dressed Gluon Exponentiation as pioneered by Jeppe Andersen and Einan Gardi. 5. B(B->Xlnu) ---------------------------- In the last update the average for B(B->Xlnu) was calculated as an average over full branching fractions. These full BFs had been extrapolated from partial BF measurements using various schemes. Since each partial BF had been measured with a cut on the lepton momentum of greater than 0.6 GeV/c, it was decided that the measured quantities be averaged to produce a partial BF average and then to use one scheme to extrapolate to the full BF. In this way the theory dependent extrapolation is separated from the experimental measurement and is performed only once on the resultant average partial BF. For the extrapolation we rely on the OPE-HQET theory approach to inclusive decays, in which the necessary extrapolation factor (f_c) can be expressed as a function of HQET parameters (m_b and \mu_\pi^2). These parameters, and thus f_c, are extracted in a global fit to measurements of moments of semileptonic and radiative B-meson decays (hep-ph/0507253). Note that the extrapolation factor is strictly for B->Xclnu, however we checked the effect of contamination from B->Xulnu and found it to be negligible. We also list the measurements of the charge separated semileptonic B branching fractions in anticipation of providing their average in future. 7. Exclusive Vub ---------------- HPQCD have updated their calculation of the form factor. We now also include the quenched lattice QCD result of the APE collaboration. 8. Exclusive Vcb ---------------- The BABAR collaboration have recently submitted a paper (hep-ex/0602023: submitted to PRD) reporting the measurement of B->D*lnu form factor ratios R1 and R2 and slope parameter rho^2. Currently as per the method reported in the 2000 and 2002 PDG Review of Particle Physics our average of 2D fit |Vcb|F(1) vs rho^2 relies on R1 and R2 measured by CLEO. Work is in progress to incorporate the BABAR results into the average. 9. Feedback ----------- Your critical comments are welcome. Please send them to antonio AT post.kek.jp