Dortmund 2021 – wissenschaftliches Programm
T 4.8: Vortrag
Montag, 15. März 2021, 17:45–18:00, Td
Measurement of CP violation in Bs0→ J/ψ KS0 decays at LHCb — •Vukan Jevtic, Patrick Mackowiak, and Gerwin Meier — Experimentelle Physik 5, TU Dortmund
With larger datasets collected by the LHCb detector and with the start of Belle II, future measurements of sin(2β) in the golden mode B0→ J/ψ KS0 will be systematically limited by penguin contributions. One way to constrain these contributions is through the measurement of CP-violation parameters in the closely related mode Bs0→ J/ψ KS0, where the tree-level decay is Cabibbo suppressed and penguin contributions are significant. The higher oscillation frequency of the Bs0 meson and the lower branching fraction of this channel add to the challenges of this analysis, which uses the full Run II dataset collected by the LHCb experiment. In this talk the current status of the analysis will be presented.