Using data collected by the fixed target Fermilab experiment FOCUS, we present several first measurements for the semileptonic decay D0→K̄0π-μ+ν. Using a model that includes a K̄0π- s-wave component, we measure the form factor ratios to be rv=1.71±0. 68±0.34 and r2=0.91±0.37±0.10 and the s-wave amplitude to be A=0.35±0.22±0.05 GeV-1. Finally, we measure the vector semileptonic branching ratio Γ(D0→K*(892)-μ+ν) Γ(D0→K̄0π-π+)=0.337±0.034±0.013.
|Original language||English (US)|
|Number of pages||11|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Feb 3 2005|
ASJC Scopus subject areas
- Nuclear and High Energy Physics