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Measurements of b -> u l nu decays and Vub at BaBar

Abstract : Measurements of charmless semileptonic B-> Xu l nu decays and the extraction of the |Vub| element of the Cabibbo-Kobayashi-Maskawa quark mixing matrix are reported. The measurements are based on samples of BBbar events recorded at the Upsilon(4S) resonance with the BaBar detector. Several different experimental techniques are compared and recent results of exclusive and inclusive approaches are presented. The magnitude of |Vub| is derived from the branching fraction measurements using several theoretical calculations.
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Conference papers
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http://hal.in2p3.fr/in2p3-00346491
Contributor : Sabine Starita <>
Submitted on : Thursday, December 11, 2008 - 4:29:14 PM
Last modification on : Wednesday, September 16, 2020 - 4:20:31 PM

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  • HAL Id : in2p3-00346491, version 1

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A. d'Orazio. Measurements of b -> u l nu decays and Vub at BaBar. 34th Conference on High Energy Physics (ICHEP'08), Jul 2008, Philadelphia, United States. ⟨in2p3-00346491⟩

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