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arXiv · hep-ph/9308344

Observation of D+ -> rho0(770) mu+ nu

Fermilab E653 Collaboration
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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.

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Fermilab E653 Collaboration. 1993-08-26. Observation of D+ -> rho0(770) mu+ nu. https://doi.org/10.1016/0370-2693(93)90351-h

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