Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/140218
Title: | Evidence for Charged B Meson Decays to a±1(1260)π0 and a01(1260)π± |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 26-Dec-2007 |
Publisher: | American Physical Society |
Abstract: | We present measurements of the branching fractions for the decays B ± → a ± 1 ( 1260 ) π 0 and B ± → a 0 1 ( 1260 ) π ± from a data sample of 232 × 10 6 B ¯¯¯ B pairs produced in e + e − annihilation through the Υ ( 4 S ) resonance. We measure the branching fraction B ( B ± → a ± 1 ( 1260 ) π 0 ) × B ( a ± 1 ( 1260 ) → π − π + π ± ) = ( 13.2 ± 2.7 ± 2.1 ) × 10 − 6 with a significance of 4.2 σ , and the branching fraction B ( B ± → a 0 1 ( 1260 ) π ± ) × B ( a 0 1 ( 1260 ) → π − π + π 0 ) = ( 20.4 ± 4.7 ± 3.4 ) × 10 − 6 with a significance of 3.8 σ , where the first error quoted is statistical and the second is systematic. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.99.261801 |
It is part of: | Physical Review Letters, 2007, vol. 99, num. 26, p. 261801 |
URI: | http://hdl.handle.net/2445/140218 |
Related resource: | https://doi.org/10.1103/PhysRevLett.99.261801 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
558182.pdf | 271.71 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.