Using data collected by the FOCUS experiment at Fermilab, we report the discovery of the decay modes D0→K-π +π+π+π-π- and D0→π+π+π+π -π-π-. With a sample of 48±10 reconstructed D0→K-π+π +π+π-π- decays and 149±17 reconstructed D0→π+π +π+π-π-π- decays, we measure the following relative branching ratios: Γ(D 0→K-π+π+π +π-π-)/Γ(D0→K -π+π+π-)=(2.70±0. 58±0.38)×10-3,Γ(D0→π +π+π+π-π -π-)/Γ(D0→K-π +π+π-)=(5.23±0.59±1.35) ×10-3,Γ(D0→π+π +π+π-π-π-)/ Γ(D0→K-π+π +π+π-π-)=1.93±0. 47±0.48. The first errors are statistical and the second are systematic. The branching fraction of the Cabibbo suppressed six-body decay mode is measured to be a factor of two higher than the branching fraction of the Cabibbo favored six-body decay mode.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). Measurements of six-body hadronic decays of the D-0 charmed. PHYSICS LETTERS. SECTION B, 586(1-2), 21-26 [10.1016/j.physletb.2004.02.038].

Measurements of six-body hadronic decays of the D-0 charmed

Moroni L;Gianini G;
2004

Abstract

Using data collected by the FOCUS experiment at Fermilab, we report the discovery of the decay modes D0→K-π +π+π+π-π- and D0→π+π+π+π -π-π-. With a sample of 48±10 reconstructed D0→K-π+π +π+π-π- decays and 149±17 reconstructed D0→π+π +π+π-π-π- decays, we measure the following relative branching ratios: Γ(D 0→K-π+π+π +π-π-)/Γ(D0→K -π+π+π-)=(2.70±0. 58±0.38)×10-3,Γ(D0→π +π+π+π-π -π-)/Γ(D0→K-π +π+π-)=(5.23±0.59±1.35) ×10-3,Γ(D0→π+π +π+π-π-π-)/ Γ(D0→K-π+π +π+π-π-)=1.93±0. 47±0.48. The first errors are statistical and the second are systematic. The branching fraction of the Cabibbo suppressed six-body decay mode is measured to be a factor of two higher than the branching fraction of the Cabibbo favored six-body decay mode.
Articolo in rivista - Articolo scientifico
article; hadron; mathematical computing; measurement; meson; reaction analysis
English
2004
586
1-2
21
26
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). Measurements of six-body hadronic decays of the D-0 charmed. PHYSICS LETTERS. SECTION B, 586(1-2), 21-26 [10.1016/j.physletb.2004.02.038].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455638
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