We report a measurement of the relative branching ratio of two Cabibbo-suppressed decay modes: D0 → π-π+ and D0 → K-K+. The data were accumulated in the 1990-1991 fixed target run of Fermilab high energy photoproduction experiment E687. The branching ratios of these modes relative to the Cabibbo-allowed decay D0 → K-π+ are also presented. The relative branching ratios are measured to be Γ(D0 → KK)/Γ(D0 → ππ) = 2.53 ± 0.46 ± 0.19, Γ(D0 → KK)/Γ(D0 → Kπ) = 0.109 ± 0.007 ± 0.009, and Γ(D0 → ππ)/Γ(D0 → Kπ) = 0.043 ± 0.007 ± 0.003.

Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1994). A measurement of the Cabibbo-suppressed decays D0 → π-π+ and D0 → K-K+. PHYSICS LETTERS. SECTION B, 321(3), 295-302 [10.1016/0370-2693(94)90479-0].

A measurement of the Cabibbo-suppressed decays D0 → π-π+ and D0 → K-K+

Gianini G.;
1994

Abstract

We report a measurement of the relative branching ratio of two Cabibbo-suppressed decay modes: D0 → π-π+ and D0 → K-K+. The data were accumulated in the 1990-1991 fixed target run of Fermilab high energy photoproduction experiment E687. The branching ratios of these modes relative to the Cabibbo-allowed decay D0 → K-π+ are also presented. The relative branching ratios are measured to be Γ(D0 → KK)/Γ(D0 → ππ) = 2.53 ± 0.46 ± 0.19, Γ(D0 → KK)/Γ(D0 → Kπ) = 0.109 ± 0.007 ± 0.009, and Γ(D0 → ππ)/Γ(D0 → Kπ) = 0.043 ± 0.007 ± 0.003.
Articolo in rivista - Articolo scientifico
Physics
English
1994
321
3
295
302
none
Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1994). A measurement of the Cabibbo-suppressed decays D0 → π-π+ and D0 → K-K+. PHYSICS LETTERS. SECTION B, 321(3), 295-302 [10.1016/0370-2693(94)90479-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455966
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