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research article
Observation of the doubly cabibbo-suppressed decay Ds+→K+K+π-
We report the first observation of the doubly Cabibbo-suppressed decay Ds+→K+K+π- using 605fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching ratio with respect to its Cabibbo-favored counterpart B(Ds+→K+K+π-)/B(Ds+→K+K-π+) is (0.229±0.028±0.012)%, where the first uncertainty is statistical and the second is systematic. We also report a significantly improved measurement of the doubly Cabibbo-suppressed decay D+→K+π+π-, with a branching ratio B(D+→K+π+π-)/B(D+→K-π+π+)=(0.569±0. 018±0.014)%. © 2009 The American Physical Society.
Type
research article
Web of Science ID
WOS:000266685400010
Scopus ID
2-s2.0-66749105081
Authors
Ko, B.R.
•
Won, E.
•
Aihara, H.
•
Arinstein, K.
•
Aushev, T.
•
Bakich, A.M.
•
Balagura, V.
•
Barberio, E.
•
Bondar, A.
•
Bozek, A.
Publication date
2009
Published in
Volume
102
Issue
22
Article Number
221802
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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