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

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

1993-08-26

arxiv.org/abs/hep-ph/9308344v1

Phys.Lett.B316:455-461,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pgs., OKHEP-93-09

Scientific paper

10.1016/0370-2693(93)90351-H

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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