Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131666
Title: | Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 25-Mar-2009 |
Publisher: | American Physical Society |
Abstract: | We present a study of the charmless semileptonic B -meson decays B + → ω ℓ + ν and B + → η ℓ + ν . The analysis is based on 3.83 × 10 8 B ¯¯¯ B pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω → π + π − π 0 and the η mesons in the channels η → π + π − π 0 and η → γ γ . We measure the branching fractions B ( B + → ω ℓ + ν ) = ( 1.14 ± 0.16 stat ± 0.08 syst ) × 10 − 4 and B ( B + → η ℓ + ν ) = ( 0.31 ± 0.06 stat ± 0.08 syst ) × 10 − 4 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.79.052011 |
It is part of: | Physical Review D, 2009, vol. 79, num. 5, p. 052011 |
URI: | http://hdl.handle.net/2445/131666 |
Related resource: | https://doi.org/10.1103/PhysRevD.79.052011 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
577760.pdf | 194.22 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.