BaBar Collaboration (Including:

). (2010) Study of B -> X gamma decays and determination of vertical bar V-td/V-ts vertical bar. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.82 (No.5). article no. 051101. ISSN 1550-7998

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Abstract

Using a sample of 471 x 10(6) B (B) over bar events collected with the BABAR detector, we study the sum of seven exclusive final states B -> X-s(d)gamma, where X-s(d) is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c(2). After correcting for unobserved decay modes, we obtain a branching fraction for b -> d gamma of (9.2 +/- 2.0(stat) +/- 2.3(syst) x 10(-6) in this mass range, and a branching fraction for b -> s gamma of (23.0 +/- 0.8(stat) +/- 3.0(syst) x 3.0(syst) x 10(-5) in the same mass range. We find B(b -> d gamma)/B(b -> s gamma) = 0.040 +/- 0.009(stat) +/- 0.010(syst), from which we determine vertical bar Vtd/Vts vertical bar = 0.199 +/- 0.022(stat) +/- 0.024(syst) +/- 0.002(th).

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
Date:	10 September 2010
Volume:	Vol.82
Number:	No.5
Number of Pages:	8
Page Range:	article no. 051101
Identification Number:	10.1103/PhysRevD.82.051101
Status:	Peer Reviewed
Publication Status:	Published
Funder:	DOE (USA), NSF (USA), NSERC (Canada), CEA (France), CNRS-IN2P3 (France), BMBF (Germany), DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), STFC (United Kingdom), Marie Curie EIF (European Union), A. P. Sloan Foundation (USA), Binational Science Foundation (USA-Israel)
URI:	http://wrap.warwick.ac.uk/id/eprint/5205

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