Regular Article - Experimental Physics
The use of quantum-correlated D0 decays for φ3 measurement
Budker Institute of Nuclear Physics, pr. Lavrentieva, 11, 630090, Novosibirsk, Russia
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Revised: 27 February 2008
Published online: 22 April 2008
We report the results of the Monte Carlo study of the method to determine the CKM angle φ3 using Dalitz plot analysis of D0 produced in B±→DK± decay. Our main goal is to find the optimal strategy for a model-independent φ3 extraction. We find that the analysis using decays of CP-tagged D mesons only cannot provide a completely model-independent measurement in the case of a limited data sample. The procedure involving binned analysis of B±→DK± and ψ(3770)→(K0 Sπ+π-)D(K0 Sπ+π-)D decays is proposed which, in contrast, allows not only to reach the φ3 precision comparable to an unbinned model-dependent fit, but also provides an unbiased measurement with currently available data.
© Springer-Verlag , 2008