Measurement of Interfering K*+K- and K*-K+ Amplitudes in the Decay D0 --> K+K-pi0
C. Cawlfield, CLEO Collaboration
Abstract
We have studied the Cabibbo-suppressed decay mode D0 into K+ K- pi0 using a Dalitz plot technique and find the strong phase difference deltaD [defined as delta(K*- K+) - delta(K*+ K-)] = 332 degrees +- 8 degrees +- 11 degrees and relative amplitude rD [defined as a(K*- K+) / a(K*+ K-)] = 0.52 +- 0.05 +- 0.04. This measurement indicates significant destructive interference between D0 into K+ (K- pi0)K*- and D0 into K- (K+ pi0)K*+ in the Dalitz plot region where these two modes overlap. This analysis uses 9.0 fb(-1) of data collected at s(1/2) of approximately 10.58 GeV with the CLEO III detector.
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