Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fennilab, we present new measurements of two semileptonic branching ratios. We obtain values of Γ(D+ → K*0μ+ν)/Γ(D+ → K-π+π+) = 0.602 ± 0.010(stat) ± 0.021(sys) and Γ(Ds+ → φμ+ν)/Γ(Ds+ → φπ+) = 0.544 ± 0.033(stat) ± 0.048(sys). Our D+ → K*0μ+ν result includes the effects of the s-wave interference discussed in Phys. Lett. B 535 (2002) 43.

Link, J., Reyes, M., Yager, P., Anjos, J., Bediaga, I., Gobel, C., et al. (2002). New measurements of the Γ(D+ → K*0μ+ν)/Γ(D+ → K-π+π+) and Γ(Ds+ → φμ+ν)/Γ(Ds+ → φπ+) branching ratios. PHYSICS LETTERS. SECTION B, 541(3-4), 243-250 [10.1016/S0370-2693(02)02272-4].

New measurements of the Γ(D+ → K*0μ+ν)/Γ(D+ → K-π+π+) and Γ(Ds+ → φμ+ν)/Γ(Ds+ → φπ+) branching ratios

Pedrini D;Gianini G;
2002

Abstract

Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fennilab, we present new measurements of two semileptonic branching ratios. We obtain values of Γ(D+ → K*0μ+ν)/Γ(D+ → K-π+π+) = 0.602 ± 0.010(stat) ± 0.021(sys) and Γ(Ds+ → φμ+ν)/Γ(Ds+ → φπ+) = 0.544 ± 0.033(stat) ± 0.048(sys). Our D+ → K*0μ+ν result includes the effects of the s-wave interference discussed in Phys. Lett. B 535 (2002) 43.
Articolo in rivista - Articolo scientifico
article; elementary particle; measurement; photon; spectrometry
English
2002
541
3-4
243
250
none
Link, J., Reyes, M., Yager, P., Anjos, J., Bediaga, I., Gobel, C., et al. (2002). New measurements of the Γ(D+ → K*0μ+ν)/Γ(D+ → K-π+π+) and Γ(Ds+ → φμ+ν)/Γ(Ds+ → φπ+) branching ratios. PHYSICS LETTERS. SECTION B, 541(3-4), 243-250 [10.1016/S0370-2693(02)02272-4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455747
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