Measurement of the B±→ρ±π0 branching fraction and direct CP asymmetry

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Aubert, B. et al. (2007) Measurement of the B±→ρ±π0 branching fraction and direct CP asymmetry. Physical Review D, 75 (9). 091103. ISSN 1550-7998

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Official URL: http://dx.doi.org/10.1103/PhysRevD.75.091103

DOI: 10.1103/PhysRevD.75.091103

Abstract

We present improved measurements of the branching fraction and CP asymmetry for the process B±→ρ±π0. The data sample corresponding to 211 fb-1 comprises 232×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and CP asymmetry are found to be B(B±→ρ±π0)=[10.2±1.4(stat)±0.9(syst)]×10-6 and ACP(B±→ρ±π0)=-0.01±0.13(stat)±0.02(syst).

Item Type:	Article
Subjects:	Q Science > QC Physics
Schools:	School of Applied Sciences
Depositing User:	Sharon Beastall
Date Deposited:	13 May 2011 08:34
Last Modified:	13 May 2011 08:34
URI:	http://eprints.hud.ac.uk/id/eprint/10425

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