We report on the first statistically significant observation of the vector meson Cabibbo suppressed semileptonic decay D+ → ρ0μ+ν. We measure the branching ratio of the decay mode D+ → ρ0μ+ν (plus possible unobserved γ from D+ → η′μ+ν, η′ → γρ0) with respect to the decay mode D+ → K̄*0μ+ν to be BR (D+ → ρ0μ+ν)/BR (D+ → K̄*0μ+ν) = 0.079 ± 0.019 (stat) ± 0.013 (syst). Data were collected by Fermilab photoproduction experiment E687.
|Original language||English (US)|
|Number of pages||8|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Jan 9 1997|
ASJC Scopus subject areas
- Nuclear and High Energy Physics