Abstract
Using data collected by the high energy photoproduction experiment FOCUS at Fermilab we study the doubly and singly Cabibbo suppressed decays D+ and Ds+→K+π+π -. Our measurements of Γ(D+→K +π+π-)/Γ(D+→K -π+π+) = 0.0065±0.0008±0. 0004 and Γ(Ds+→K+π +π-)/Γ(Ds+→K +K-π+) = 0.127±0.007±0.014 are based on samples of 189±24 D+ and 567±31 D s+ reconstructed events, respectively. We also present Dalitz plot analyses of the two decay channels; the amplitude analysis of the Ds+→K+π+π- mode is performed for the first time.
Original language | English (US) |
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Pages (from-to) | 10-19 |
Number of pages | 10 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 601 |
Issue number | 1-2 |
DOIs | |
State | Published - Nov 4 2004 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics