New Measurements of the D+ to K* mu nu Form Factor Ratios

Details New Measurements of the D+ to K* mu nu Form Factor Ratios New Measurements of the D+ to K* mu nu Form Factor Ratios

2002-07-19

arxiv.org/abs/hep-ex/0207049v1

Phys.Lett.B544:89-96,2002

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 5 figures

Scientific paper

10.1016/S0370-2693(02)02386-9

Using a large sample of D+ to K- pi+ mu+ nu decays collected by the FOCUS
photoproduction experiment at Fermilab, we present new measurements of two
semileptonic form factor ratios: rv and r2. We find rv = 1.504 \pm 0.057 \pm
0.039 and r2 = 0.875 \pm 0.049 \pm 0.064. Our form factor results include the
effects of the s-wave interference discussed in a previous paper.

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