Experimental status of CPV in $B_s^0$ mixing

Abstract

This proceeding contribution presents the latest measurement of the CP-violation and other physics parameters in the $B_s^0\to J/\psi \varphi$ decay channel performed by the ATLAS, CMS and LHCb experiments. The measurements are based on a data set collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. Besides the CP violating phase ${\varphi }_s$, the width difference between the $B_s^0$ meson mass eigenstates $\Delta {\Gamma }_s$ and the average decay width ${\Gamma }_s$ are measured. The measured values are then combined with those collected at 8 TeV. The measurements are consistent with theoretical predictions based on the Standard Model.

Conference on Flavour Physics and CP violation (FPCP) 2020, A Toxa, Spain, 8-12 June 2020. 9 pages, LaTeX, 2 png figures

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