Study of the decay mode D0→K−K−K+π+
Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement of the branching ratio for the Cabibbo-favored decay mode D0→K−K−K+π+. From a sample of 143±19 fully reconstructed D0→K−K−K+π+ events, we measure Γ(D0→K−K−K+π+)/Γ(D0→K−π−π+π+)=0.00257±0.00034(stat.)±0.00024(syst.). A coherent amplitude analysis has been performed to determine the resonant substructure of this decay mode. This analysis reveals a dominant contribution from φ and K∗0(892) states.
Kryemadhi, Abaz, "Study of the decay mode D0→K−K−K+π+" (2003). Mathematics, Physics, and Statistics Educator Scholarship. 30.