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http://hdl.handle.net/2445/141358
Title: | Determination of |Vub| from Measurements of the Electron and Neutrino Momenta in Inclusive Semileptonic B Decays |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 9-Sep-2005 |
Publisher: | American Physical Society |
Abstract: | We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element | V u b | based on the analysis of semileptonic B decays from a sample of 88 × 10 6 Υ ( 4 S ) decays collected with the BABAR detector at the SLAC PEP-II e + e − storage ring. Charmless semileptonic B decays are selected using measurements of the electron energy and the invariant mass squared of the electron-neutrino pair. We obtain | V u b | = ( 3.95 ± 0.26 + 0.58 − 0.42 ± 0.25 ) × 10 − 3 , where the errors represent experimental uncertainties, heavy quark parameter uncertainties, and theoretical uncertainties, respectively. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.111801 |
It is part of: | Physical Review Letters, 2005, vol. 95, num. 11, p. 111801 |
URI: | http://hdl.handle.net/2445/141358 |
Related resource: | https://doi.org/10.1103/PhysRevLett.95.111801 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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