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A Novel Possibility to Determine the CP-violating Phase γand the B^0_s-\bar{B}^0_s Mixing Parameter y_s at the Υ(5S) Resonance

Zhi-zhong Xing
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Abstract

We show that a CP-violating phase can be model-independently determined from the time-independent measurement of coherent B^0_s\bar{B}^0_s decays into (D^{(*)\pm}_s K^{(*)\mp})(D^{(*)\pm}_s K^{(*)\mp}) states at the Υ(5S) resonance. This phase amounts to (-γ) within the standard model, where γis the well-known angle of the quark mixing unitarity triangle. It is also possible to determine or constrain the B^0_s-\bar{B}^0_s mixing parameter y_s from the same measurement.

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Zhi-zhong Xing. 2000-04-13. A Novel Possibility to Determine the CP-violating Phase γand the B^0_s-\bar{B}^0_s Mixing Parameter y_s at the Υ(5S) Resonance. https://doi.org/10.1016/s0370-2693(00)00875-3

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