Measurements of six-body hadronic decays of the D0 charmed meson
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(D0→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.
Kryemadhi, Abaz, "Measurements of six-body hadronic decays of the D0 charmed meson" (2004). Mathematics, Physics, and Statistics Educator Scholarship. 27.