FOCUS Document 730-v1

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Study of the doubly and singly Cabibbo suppressed decays D+ -> K+pi+pi- and D+_s -> K+pi+pi-

Document #:
FOCUS-doc-730-v1
Document type:
Publication
Submitted by:
Jonathan A. Pellish
Updated by:
Jonathan A. Pellish
Document Created:
12 Aug 2004, 10:28
Contents Revised:
12 Aug 2004, 10:28
Metadata Revised:
04 Nov 2004, 15:15
Actually Revised:
24 Aug 2005, 15:15
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Abstract:
Using data collected by the high energy photoproduction experiment FOCUS at Fermilab we study the doubly and singly Cabibbo suppressed decays D+ and D+_s to K+ pi+ pi-. Our measurements of Gamma(D+ -> K+ pi+ pi-)/Gamma(D+ -> K- pi+ pi+) = 0.0065[+/-]0.0008[+/-]0.0004 and Gamma(D^+_s -> K+ pi+ pi-)/Gamma(D+_s -> K+ K- pi+) = 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 D+_s -> K+ pi+ pi- mode is performed for the first time.
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Published in hep-ex/0407014.
Published in Phys. Lett. B vol. 601 pg. 10.
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