PPT Slide
Y(D+ ) = 73.1±13 Y(Ds+ ) = 64.5±13
- D+ ?K+K-K+ is a ?C = -?S DCSD which cannot occur via a spectator diagram.
?(D + ?K+K-K+)/ ?( D +) = (1.23?0.23)?10-4
Just on PDG 98 limit from E687 of Br < 1.4?10-4 CL=90%
Our rarest DCSD BR yet : ?(D + ?K+K-K+) / ?(K-??+?+) ?? tan4?C/2
A KKK Dalitz analysis may shed light on the KKK decay mechanism.
PRELIMINARY D+ ?K+K?K+ ~100% FOCUS