Determination of the CP-violating phase in $B_s^0\to J/\psi \varphi$ decays at LHCb

Greig A Cowan

Flavour-tagged, time-dependent, angular analysis of the decay $B_s^0\to J/\psi \varphi$ allows the determination of a CP-violating phase which in the Standard Model is denoted $-2{\beta }_s$, and…