Sunday, August 4, 2013

1308.0080 (Ryan Mackenzie White on behalf of the BaBar collaboration)

Search for CP Violation in Charm at $e^+e^-$ colliders    [PDF]

Ryan Mackenzie White on behalf of the BaBar collaboration
In this proceeding, I discuss results from the BaBar and Belle collaborations for searches of direct CP violation in the singly Cabibbo-suppressed decay $\D^\pm\to K^+K^-\pi^\pm$ from $e^+e^-$ annihilation data collected at a center-of-mass energy at or just below the \Y4S resonance. The Belle collaboration measures the CP asymmetry as a function of the production angle of the $D^\pm$ meson in the quasi two-body $\D^\pm\to\phi\pi^\pm$ decay. The Babar experiment studies the entire phase-space with model-independent and model-dependent Dalitz plot analysis techniques to search for CP-violating asymmetries in the various intermediate states, in addition to a phase-space integrated measurement as a function of the production angle. No evidence for CP violation is reported from either experiment.
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