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Study of B-0 ->pi(0)pi(0), B-+/-->pi(+/-)pi(0), and B-+/--> K-+/-pi(0) decays, and isospin analysis of B ->pi pi decays

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Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, J. Garra et al.
(2007) Study of B-0 ->pi(0)pi(0), B-+/-->pi(+/-)pi(0), and B-+/--> K-+/-pi(0) decays, and isospin analysis of B ->pi pi decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.76 (No.9). Article No. 091102 . doi:10.1103/PhysRevD.76.091102

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Official URL: http://dx.doi.org/10.1103/PhysRevD.76.091102

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Abstract

We present updated measurements of the branching fractions and CP asymmetries for B-0 ->pi(0)pi(0), B-+/-->pi(+/-)pi(0), and B-+/--> K-+/-pi(0). Based on a sample of 383x10(6) Upsilon(4S)-> B (B) over bar decays collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we measure B(B-0 ->pi(0)pi(0))=(1.47 +/- 0.25 +/- 0.12)x10(-6), B(B-+/-->pi(+/-)pi(0))=(5.02 +/- 0.46 +/- 0.29)x10(-6), and B(B-+/--> K-+/-pi(0))=(13.6 +/- 0.6 +/- 0.7)x10(-6). We also measure the CP asymmetries C-pi(pi)0(0)=-0.49 +/- 0.35 +/- 0.05, A(pi)(pi)(+)(0)=0.03 +/- 0.08 +/- 0.01, and A(K)(pi)(+)(0)=0.030 +/- 0.039 +/- 0.010. Finally, we present bounds on the Cabibbo-Kobayashi-Maskawa angle alpha using isospin relations.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: November 2007
Dates:
DateEvent
November 2007Published
Volume: Vol.76
Number: No.9
Number of Pages: 9
Page Range: Article No. 091102
DOI: 10.1103/PhysRevD.76.091102
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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