Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 → K-K+. We measured: Γ(D0 → K-K+)/Γ(D0 → π-π+) = 2.81 ± 0.10(stat) ± 0.06(syst), Γ(D0 → K-K+)/Γ(D0 → K-π+) = 0.0993 ± 0.0014(stat) ± 0.0014(syst), and Γ(D0 → π-π+)/Γ(D0 → K-π+) = 0.0353 ± 0.0012(stat) ± 0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D → K K and D → ππ decay channels.

Link, J., Reyes, M., Yager, P., Anjos, J., Bediaga, I., Gobel, C., et al. (2003). Study of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 K-K+. PHYSICS LETTERS. SECTION B, 555(3-4), 167-173 [10.1016/S0370-2693(03)00053-4].

Study of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 K-K+

Gianini G;
2003

Abstract

Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 → K-K+. We measured: Γ(D0 → K-K+)/Γ(D0 → π-π+) = 2.81 ± 0.10(stat) ± 0.06(syst), Γ(D0 → K-K+)/Γ(D0 → K-π+) = 0.0993 ± 0.0014(stat) ± 0.0014(syst), and Γ(D0 → π-π+)/Γ(D0 → K-π+) = 0.0353 ± 0.0012(stat) ± 0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D → K K and D → ππ decay channels.
Articolo in rivista - Articolo scientifico
article; data analysis; degradation; mathematical analysis; molecular interaction; nuclear physics; phase transition
English
2003
555
3-4
167
173
none
Link, J., Reyes, M., Yager, P., Anjos, J., Bediaga, I., Gobel, C., et al. (2003). Study of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 K-K+. PHYSICS LETTERS. SECTION B, 555(3-4), 167-173 [10.1016/S0370-2693(03)00053-4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455740
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