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http://hdl.handle.net/2445/131422
Title: | Measurement of the ratio B(B+ → Xeν) / B(B0 → Xeν) |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 29-Nov-2006 |
Publisher: | American Physical Society |
Abstract: | We report measurements of the inclusive electron momentum spectra in decays of charged and neutral B mesons, and of the ratio of semileptonic branching fractions B ( B + → X e ν ) and B ( B 0 → X e ν ) . These were performed on a sample of 231 × 10 6 B ¯¯¯ B events recorded with the BABAR detector at the Υ ( 4 S ) resonance. Events are selected by fully reconstructing a hadronic decay of one B meson and identifying an electron among the decay products of the recoiling ¯¯¯ B meson. We obtain B ( B + → X e ν ) / B ( B 0 → X e ν ) = 1.074 ± 0.041 ( stat ) ± 0.026 ( syst ) . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.091105 |
It is part of: | Physical Review D, 2006, vol. 74, num. 9, p. 091105(R) |
URI: | http://hdl.handle.net/2445/131422 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.091105 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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