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T: Fachverband Teilchenphysik
T 60: Top Quarks: Decay and CP Violation and Mixing Angles
T 60.8: Talk
Wednesday, March 23, 2022, 18:00–18:15, T-H19
Measurement of the CKM mixing angle γ with Bs0 → Ds∓K± decays at the LHCb experiment — •Quentin Führing and Kevin Heinicke — Experimentelle Physik 5, TU Dortmund
In the Standard Model of particle physics the quark mixing matrix is expected to be unitary. To test this unitarity, the properties of the unitarity triangles are constrained. The mixing angle γ is such a property of interest.
To constrain the mixing angle γ, precise decay-time-dependent measurements of CP violation in Bs0 → Ds∓K± decays can be used. With an excellent decay-time resolution and a large number of Bs0 decays, the LHCb experiment provides the necessary data for this measurement.
In this talk a decay-time-dependent analysis aiming to measure γ is presented. Data corresponding to an integrated luminosity of 6 fb−1 recorded by the LHCb experiment from 2015 to 2018 at a centre-of-mass energy of 13 TeV are used for this analysis.