Observation of the Radiative Decay D^(*+) → D^+y

Creators: Bartelt, J.; Barish, B.; Chadha, M.; Chan, S.; Eigen, G.; Miller, J. S.; O'Grady, C.; Schmidtler, M.; Urheim, J.; Würthwein, F.; Weinstein, Alan J.; CLEO Collaboration

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^+π^0) = 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.

Additional Information

© 1998 The American Physical Society. Received 19 November 1997; published in the issue dated 4 May 1998. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, the U.S. Department of Energy, the Heisenberg Foundation, the Alexander von Humboldt Stiftung, Research Corporation, the Natural Sciences and Engineering Research Council of Canada, the A. P. Sloan Foundation, and the Swiss National Science Foundation.

Attached Files

Published - BARprl98a.pdf

Files

BARprl98a.pdf

Files (169.5 kB)

Name	Size	Download all
BARprl98a.pdf md5:3c00fe44ae3fe51697896e2d8f631685	169.5 kB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes