BABAR Collaboration (Including:

). (2008) Measurements of branching fractions for B+ -> rho(+)gamma, B-0 -> rho(0)gamma, and B-0 -> omega gamma. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.11). article no. 112001. doi:10.1103/PhysRevD.78.112001

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Abstract

We present branching fraction measurements for the radiative decays B+-> rho(+)gamma, B-0 -> rho(0)gamma, and B-0 -> omega gamma. The analysis is based on a data sample of 465 X 10(6) B (B) over bar events collected with the BABAR detector at the PEP-II asymmetric-energy B Factory located at the Stanford Linear Accelerator Center. We find B(B+ -> rho(+)gamma) = (1.20(-0.37)(+0.42) +/- 0.20) X 10(-6), B(B-0 -> rho(0)gamma) = (0.97(-0.22)(+0.24) +/- 0.06) X 10(-6), and a 90% C.L. upper limit B(B-0 -> omega gamma) < 0.9 X 10(-6), where the first error is statistical and the second is systematic. We also measure the isospin-violating quantity Gamma(B+ -> rho(+)gamma)/2 Gamma(B-0 -> rho(0)gamma) - 1 = -0.43 (+0.25)(-0.22) +/- 0.10.

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:	December 2008
Dates:	Date Event December 2008 UNSPECIFIED
Volume:	Vol.78
Number:	No.11
Number of Pages:	11
Page Range:	article no. 112001
DOI:	10.1103/PhysRevD.78.112001
Status:	Peer Reviewed
Publication Status:	Published

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