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Measurement of B -> X gamma Decays and Determination of |V-td/V-ts|
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BABAR Collaboration (Including:
). (2009) Measurement of B -> X gamma Decays and Determination of |V-td/V-ts|. Physical Review Letters, Vol.102 (No.16). article no. 161803. doi:10.1103/PhysRevLett.102.161803 Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.161803
Abstract
Using a sample of 383x10(6) BB events collected by the BABAR experiment, we measure sums of seven exclusive final states B -> X-d(s)gamma, where X-d(X-s) is a nonstrange (strange) charmless hadronic system in the mass range 0.6-1.8 GeV/c(2). After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b -> d gamma of (7.2 +/- 2.7(stat)+/- 2.3(syst))x10(-6). Taking the ratio of X-d to X-s we find Gamma(b -> d gamma)/Gamma(b -> s gamma)=0.033 +/- 0.013(stat)+/- 0.009(syst), from which we determine |V-td/V-ts|=0.177 +/- 0.043.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 24 April 2009 | ||||
| Dates: |
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| Volume: | Vol.102 | ||||
| Number: | No.16 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | article no. 161803 | ||||
| DOI: | 10.1103/PhysRevLett.102.161803 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Funder: | DOE and NSF (USA), NSERC (Canada), CEA, BMBF, DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), Science and Technology Facilities Council (Great Britain) (STFC), Marie Curie EIF (European Union), A. P. Sloan Foundation | ||||
| Grant number: | CNRS-IN2P3 |
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