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Measuring gamma cleanly with CP-tagged Bs and Bd decays

Adam F. Falk·Alexey A. Petrov
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Abstract

We propose a new method for measuring the CKM phase gamma using the partial rates for CP-tagged Bs decays. Such an experiment could be performed at a very high luminosity symmetric e+e- collider operating at the Upsilon(5S) resonance, where the Bs-Bsbar state is produced in a state of definite CP. We also discuss CP-tagging in the Bd system at the Upsilon(4S), where a time-dependent analysis is required to compensate for the anticipated large CP violation in Bd-Bdbar mixing.

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Adam F. Falk, Alexey A. Petrov. 2000-03-31. Measuring gamma cleanly with CP-tagged Bs and Bd decays. https://doi.org/10.1103/physrevlett.85.252

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