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

Abstract

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.

arXiv comment12 pages, 5 figures

References in corpus (5)

• A measurement of lifetime differences in the neutral D-meson system
• Evidence for new interference phenomena in the decay D+ to K- pi+ mu+ nu
• Cerenkov Particle Identification in FOCUS
• Measurement of the form-factor ratios for D^+ -> \overline K^{*0}e^+ν_e
• Measurement of the form-factor ratios for D+ --> K* l nu

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