Measurements of the CKM matrix element |Vub| with BaBar

Measurement of the CKM Matrix Element |Vub| with Charmless Exclusive Semileptonic B Meson Decays at BABAR The BABAR Collaboration

We present a preliminary measurement of the branching fraction for B → ρeν and of the CKM matrix element |Vub| using approximately 55 million BB̄ meson pairs collected with the BABAR detector. Using isospin relations for several modes we find B(B → ρ e ν) = (3.39 ± 0.44 ± 0.52 ± 0.60) × 10 |Vub| = (3.69 ± 0.23 ± 0.27 +0.40 −0.59) × 10 . The quoted errors are statistical, systematic, and theoreti...

|Vub| measurements at BABAR

Inclusive|Vub | measurements at BABAR

Measurements of the CKM angle γ at BABAR

The recent measurements of the CKM angle γ by the BABAR experiment are reported. The analyses have been performed using the complete sample of 468 million BB pairs collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B factory during the years 1999-2007.

|Vub| at BABAR

We report on new measurements of the Cabibbo-Kobayashi-Maskawa matrix elements |Vcb| and |Vub| with inclusive and exclusive semileptonic B decays, highlighting the recent precision measurements with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. Contributed to the Proceedings of Particles and Nuclei International Conference, PANIC05, October 24 28, 2005, Santa Fe, NM USA ...