Measuring cal B(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_D^+

Preprint

26 November 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0411050

Abstract

In 60 inverse-pb of data taken on the psi(3770) resonance with the CLEO-c detector, we find 8 D+ -> mu+ nu decay candidates that are mostly signal, containing only 1 estimated background. Using this statistically compelling sample, we measure a value of B(D+ -> mu+ nu) = (3.5 +/- 1.4 +/- 0.6) x10^(-4), and determine fD+=(202 +/- 41 +/-17) MeV.

Keywords

PSEUDOSCALAR DECAY
DECAY CONSTANT
MEASURING CAL
CONSTANT F_D
PSI

All Related Versions

Version 1, 2004-11-15, ArXiv
Version 2, 2004-11-26, ArXiv
Published version: Physical Review D, 70 (11), 112004.

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