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http://hdl.handle.net/2445/131434
Title: | Measurement of the B± → ρ±π0 branching fraction and direct CP asymmetry |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 31-May-2007 |
Publisher: | American Physical Society |
Abstract: | We present improved measurements of the branching fraction and C P asymmetry for the process B ± → ρ ± π 0 . The data sample corresponding to 211 fb − 1 comprises 232 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and C P asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and C P asymmetry are found to be B ( B ± → ρ ± π 0 ) = [ 10.2 ± 1.4 ( stat ) ± 0.9 ( syst ) ] × 10 − 6 and A C P ( B ± → ρ ± π 0 ) = − 0.01 ± 0.13 ( stat ) ± 0.02 ( syst ) . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.75.091103 |
It is part of: | Physical Review D, 2007, vol. 75, num. 9, p. 091103(R) |
URI: | http://hdl.handle.net/2445/131434 |
Related resource: | https://doi.org/10.1103/PhysRevD.75.091103 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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