CP-violation parameters from decay rates of B±→DK±, D→multibody final states

A. Soffer*, W. Toki, F. Winklmeier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We describe a method for measuring CP-violation parameters from which the Cabibbo-Kobayashi-Maskawa angle γ may be extracted. The method makes use of the total decay rates in B±→DK± decays, where the neutral D meson decays to multibody final states. We analyze the error of the method using experimental CP-violation analysis variables that enable straightforward sensitivity comparison with other methods for extracting γ, and discuss the use of B-factory and charm-factory data to obtain the relevant charm-decay information needed for this measurement. Measurement sensitivities are estimated for the currently available B-factory data sample, and D decay modes for which use of this method can make a significant contribution toward reducing the total error on γ are identified.

Original languageEnglish
Article number014026
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
StatePublished - 5 Jan 2009


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