Measuring cal B(D+ --> mu+ nu) and the Pseudoscalar Decay Constant fD+
Bonvicini, G. · Collaboration, CLEO
Original · EN
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.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.