Time-dependent Dalitz plot analysis of B^{0}→D^{∓}K^{0}π^{±} decays

B Aubert, P Del Amo Sanchez, Christopher Hawkes, Nitesh Soni, Alan Watson

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32 Citations (Scopus)


We present for the first time a measurement of the weak phase 2 beta+gamma obtained from a time-dependent Dalitz plot analysis of B-0 ->(DK0)-K--/+pi(+/-) decays. Using a sample of approximately 347x10(6) B (B) over bar pairs collected by the BABAR detector at the PEP-II asymmetric-energy storage rings and assuming the ratio r of the b -> u and b -> c decay amplitudes to be 0.3, we obtain 2 beta+gamma=(83 +/- 53 +/- 20)degrees and the equivalent solution at +180 degrees. The magnitudes and phases for the resonances associated with the b -> c transitions are also extracted from the fit.
Original languageEnglish
Article number071102
JournalPhysical Review D
Issue number7
Early online date1 Apr 2008
Publication statusPublished - 1 Apr 2008


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