arXiv:hep-ph/9308344·v1·High Energy Physics — Phenomenology
Observation of D+ -> rho0(770) mu+ nu
Fermilab E653 Collaboration
Abstract
We report the first observation of the Cabibbo disfavored semileptonic decay mode D+ -> rho0(770) mu+ nu, and measure its decay rate relative to the Cabibbo favored mode D+ -> K*0(892) mu+ nu to be Gamma(D+ -> rho0(770) mu+ nu) / Gamma(D+ -> K*0(892) mu+ nu) = 0.044 +0.031 -0.025 (stat.) +/- 0.014 (sys). The results are compared to theoretical predictions and to previous experimental upper limits.
Comments: 15 pgs., OKHEP-93-09