) Γ ( D + s → φ π + ) Branching Ratios
نویسندگان
چکیده
Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic branching ratios. We obtain values of Γ(D + →K ∗0 μν) Γ(D+→K−π+π+) = 0.602 ± 0.010 (stat) ± 0.021 (sys) and Γ(D + s →φ μ ν) Γ(D s →φ π+) = 0.54 ± 0.033 (stat) ± 0.048 (sys). Our D+ → K ∗0 μ+ν result includes the effects of the s-wave interference discussed in Reference [1].
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