Time-dependent CP violation in $B_s^0$ decays at LHCb

Abstract

The $B_s^0-{\bar{B}}_s^0$ system can be used to look for new sources of CP violation. Time-dependent CP violation measurements of beauty mesons allow the determination of the mixing induced CP-violating phase, ${\varphi }_s$. The angular analysis of the $B_s^0\to \varphi \varphi$ decay is presented, along with two $B_s^0\to J/\psi h^{+}{h}^{-}$ decays, where the two hadrons are either a pair of kaons or a pair of pions. The analyses are based on data collected with the LHCb detector between $2011$ and $2016$.

4 pages, 4 figures, FPCP 2019 conference