Title

Measurement of the direct photon spectrum in [Formula presented] decays

Document Type

Article

Publication Date

1-1-1997

Abstract

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we have determined the ratio of branching fractions: [Formula presented]. From this ratio, we have determined the QCD scale parameter [Formula presented] (defined in the modified minimal subtraction scheme) to be [Formula presented] MeV, from which we determine a value for the strong coupling constant [Formula presented], or [Formula presented]. © 1997 The American Physical Society.

Publication Name

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume Number

55

First Page

5273

Last Page

5281

Issue Number

9

DOI

10.1103/PhysRevD.55.5273

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