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Measurement of the branching fractions of the radiative charm decays D^{0}→K[over ¯]^{*0}γ and D^{0}→ϕγ

Aubert, B. et al. (2008) Measurement of the branching fractions of the radiative charm decays D^{0}→K[over ¯]^{*0}γ and D^{0}→ϕγ. Physical Review D, 78 (7). 071101. ISSN 1550-7998

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Abstract

We present a measurement of the branching fractions for the Cabibbo-favored radiative decay D0→K̅ *0γ and the Cabibbo-suppressed radiative decay D0→ϕγ. These measurements are based on a data sample corresponding to an integrated luminosity of 387.1 fb-1 and recorded with the BABAR detector at the PEP-II e+e- asymmetric-energy collider operating at center-of-mass energies 10.58 and 10.54 GeV. We measure the branching fractions relative to the well-studied decay D0→K-π+ and find B(D0→K̅ *0γ)/B(D0→K-π+)=(8.43±0.51±0.70)×10-3 and B(D0→ϕγ)/B(D0→K-π+)=(7.15±0.78±0.69)×10-4, where the first error is statistical and the second is systematic. This is the first observation of the decay mode D0→K̅ *0γ.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 15 Dec 2011 13:04
Last Modified: 15 Dec 2011 13:04
URI: http://eprints.hud.ac.uk/id/eprint/12195

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