Observation of the Radiative Decay D^*+→D⁺γ

Authors

J. Bartelt, Vanderbilt University, Nashville, Tennessee
Kenneth A. Bloom, University of Nebraska-LincolnFollow
CLEO Collaboration

Date of this Version

5-4-1998

Comments

Published by American Physical Society. Phys. Rev. Lett. 80, 3919 (1998). Permission to use. http://prl.aps.org/. Copyright © 1998 American Physical Society.

Abstract

We have observed a signal for the decay D^*+→D⁺γ at a significance of 4 standard deviations. From the measured branching ratio B(D^*+→D⁺γ)/ B(D^*+→ D⁺+pi⁰ = 0.055 ± 0.014 ± 0.010 we find B(D^*+→D⁺γ)= 0.017 ± 0.004 ± 0.003, where the first uncertainty is statistical and the second is systematic. We also report the highest precision determination of the remaining D^*+ branching fractions.