Speaker: Jon Rosner (University of Chicago) Date: Wed Jan 31, 2001, 4.30 pm Location: Wean 7316 Title: Factorization Tests and CKM Matrix Determination in B Decays Abstract: Recent semileptonic B decay measurements by the CLEO Collaboration have yielded a large value of the Cabibbo-Kobayashi-Maskawa matrix element Vcb. The implications of this value for interpreting CP violation experiments and for testing factorization in nonleptonic B decays are discussed.