Time-dependent Dalitz plot analysis of $B^0 \to D^\mp K^0 \pi^\pm$ decays

Abstract : We present for the first time a measurement of the weak phase 2b+g obtained from a time-dependent Dalitz plot analysis of B^0 -> D-(+) K0 Pi+(-) decays. Using a sample of approximately 347*10^{6} BBbar pairs collected by the BABAR detector at the PEP-II asymmetric-energy storage rings, we obtain 2b+g = (83 +/- 53 +/- 20) degrees and (263 +/- 53 +/- 20) degrees assuming the ratio r of the b -> u and b -> c decay amplitudes to be 0.3. The magnitudes and phases for the resonances associated with the b -> c transitions are also extracted from the fit.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00221476
Contributor : Claudine Bombar <>
Submitted on : Monday, January 28, 2008 - 5:16:42 PM
Last modification on : Tuesday, December 22, 2020 - 12:40:02 PM

Citation

B. Aubert, M. Bona, Y. Karyotakis, J.P. Lees, V. Poireau, et al.. Time-dependent Dalitz plot analysis of $B^0 \to D^\mp K^0 \pi^\pm$ decays. Physical Review D, American Physical Society, 2008, 77, 071102 (9p.). ⟨10.1103/PhysRevD.77.071102⟩. ⟨in2p3-00221476⟩

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