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.
Original language | English (US) |
---|---|
Pages (from-to) | 21-26 |
Number of pages | 6 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 586 |
Issue number | 1-2 |
DOIs | |
State | Published - Apr 22 2004 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics