Published September 10, 2010
| Version Published
Journal Article
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Study of B → Xγ decays and determination of |V_(td)/V_(ts)|
Abstract
Using a sample of 471×10^6 BB̅[overbar] events collected with the BABAR detector, we study the sum of seven exclusive final states B→X_(s(d))γ, 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→dγ of (9.2±2.0(stat)±2.3(syst))×10^(-6) in this mass range, and a branching fraction for b→sγ of (23.0±0.8(stat)±3.0(syst))×10^(-5) in the same mass range. We find B[script](b→dγ)/B[script](b→sγ)=0.040±0.009(stat)±0.010(syst), from which we determine |V_(td)/V_(ts)|=0.199±0.022(stat)±0.024(syst)±0.002(th).
Additional Information
© 2010 The American Physical Society. Received 21 May 2010; published 10 September 2010. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel).Attached Files
Published - Sanchez2010p11473Phys_Rev_D.pdf
Files
Sanchez2010p11473Phys_Rev_D.pdf
Additional details
Identifiers
- Eprint ID
- 20284
- Resolver ID
- CaltechAUTHORS:20101004-141233184
Funding
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Commissariat à l'Energie Atomique (CEA)
- Centre National de la Recherche Scientifique (CNRS-IN2P3)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Istituto Nazionale di Fisica Nucleare (INFN)
- Fundamenteel Onderzoek der Materie (FOM)
- Research Council of Norway (NFR)
- Ministry of Education and Science of the Russian Federation (MES)
- Ministerio de Ciencia e Innovación (MICIIN)
- Science and Technology Facilities Council (STFC)
- Marie Curie EIF (European Union)
- A. P. Sloan Foundation
- Binational Science Foundation
Dates
- Created
-
2010-11-15Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field