Title: Measurements of the CKM matrix element |Vub| with BaBar
Abstract: A preliminary BaBar measurement of the inclusive partial branching fraction b → ueν is presented. We find ΔB(b → ueν, 2.3…2.6 GeV) = (0.152 ± 0.014stat. ±0.014syst.) × 10−3. In addition, a preliminary measurement of the branching fraction B → ϱeν is presented and the CKM matrix element |Vub| is determined from tis measurement. We find B(B0 → ϱ− e+ ν) = (3.39 ± 0.44stat. ± 0.52syst. ± 0.60theo.) × 10−4, and |Vub| = (3.69 ± 0.23stat.± 0.27syst. −0.59 theo.+0.40) × 10−3.