Measurement of B(D+ -> mu+ nu) and the pseudoscalar decay constant f_D at CLEO

Details Measurement of B(D+ -> mu+ nu) and the pseudoscalar decay constant f_D at CLEO Measurement of B(D+ -> mu+ nu) and the pseudoscalar decay constant f_D at CLEO

2005-01-18

arxiv.org/abs/hep-ex/0501046v1

J.Phys.Conf.Ser. 9 (2005) 91-94

Physics

High Energy Physics

High Energy Physics - Experiment

Talk presented at the 1st Meeting of the APS Topical Group on Hadronic Physics (Fermilab, Oct. 24-26, 2004). LaTeX 4 pages, 2

Scientific paper

10.1088/1742-6596/9/1/015

The analysis of 60 1/pb data collected on the psi(3770) resonance with the
CLEO-c detector has produced the first statistically significant signal for D+
-> mu+ nu decay and led to the measurement of the decay branching fraction B(D+
-> mu+ nu) = (3.5 +- 1.4 +- 0.6) x 10-4 and the pseudoscalar decay constant f_D
= (202 +- 41 +- 17) MeV.

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