University of Birmingham > Talks@bham > Particle Physics Seminars > Measurement of CP violation in Bs-->J/psi+phi decays at CDF

Measurement of CP violation in Bs-->J/psi+phi decays at CDF

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The $B0_s$ mixing phase $\beta_s$ is a key probe of physics beyond the standard model (SM). The first Tevatron measurements hinted at a $\approx 2\sigma$ departure from the SM expectations. We present a new analysis using $B_s0 \rightarrow J/\psi\,\phi$ decays reconstructed in 5.2~fb$^{-1}$ of data collected by CDF detector, where tightened bounds on the mixing phase are obtained along with an improved measurement of the decay-width difference $\Delta \Gamma_s$ and of $B0_s$ lifetime.

This talk is part of the Particle Physics Seminars series.

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