Impact of D0-D0bar mixing on the experimental determination of gamma

Details Impact of D0-D0bar mixing on the experimental determination of gamma Impact of D0-D0bar mixing on the experimental determination of gamma

1999-12-05

arxiv.org/abs/hep-ph/9912242v1

Phys.Rev. D61 (2000) 112001

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, Latex with epsfig, 8 figures

Scientific paper

10.1103/PhysRevD.61.112001

Several methods have been devised to measure the weak phase gamma using decays of the type B+- --> D K+-, where it is assumed that there is no mixing in the D0-D0bar system. However, when using these methods to uncover new physics, one must entertain the real possibility that the measurements are affected by new physics effects in the D0-D0bar system. We show that even values of x_D and/or y_D around 10^{-2} can have a significant impact in the measurement of sin^2{gamma}. We discuss the errors incurred in neglecting this effect, how the effect can be checked, and how to include it in the analysis.

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