Search for CP Violation in Charm Meson Decay
by P.L. Frabetti et al.
Abstract.
We report the results of a search for CP violating
decay rate asymmetries (A_{CP}) in
the charm decay modes D^+ --> K^- K^+ \pi^+,
D^+ --> K(*0)bar K^+, D^+ --> \phi \pi^+, and
%and a new limit for the mode
D^0 --> K^+ K^-.
Our measurements are all consistent with zero asymmetry:
A_{CP}(KK \pi) = -0.031 +- 0.068,
A_{CP}(K^* K) = -0.12 +- 0.13,
A_{CP}(\phi \pi) = 0.066 +- 0.086,
and A_{CP}(KK) = 0.024 +- 0.084.
The data were accumulated by the Fermilab high energy
photoproduction experiment E687.