New Measurements of the D+ to K*munu/k2pi and Ds to phimunu/phipi Branching ratios

Details New Measurements of the D+ to K*munu/k2pi and Ds to phimunu/phipi Branching ratios New Measurements of the D+ to K*munu/k2pi and Ds to phimunu/phipi Branching ratios

2002-06-21

arxiv.org/abs/hep-ex/0206056v1

Phys.Lett.B541:243-250,2002

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages 3 figures

Scientific paper

10.1016/S0370-2693(02)02272-4

Using a large sample of charm semileptonic decays collected by the FOCUS
photoproduction experiment at Fermilab, we present new measurements of two
semileptonic branching ratios. We obtain values of D+ to K*munu/k2pi = 0.602
+/- 0.010 +/- 0.021 and Ds to phimunu/phipi = 0.54 +/- 0.033 +/- 0.048. Our
result D+ result includes the effects of s-wave interference.

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