Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 4: Quark mixing and CP violation

T 4.7: Vortrag

Montag, 15. März 2021, 17:30–17:45, Td

Background studies in B0 mixing to hadronic final states at the Belle 2 experiment — •Caspar Schmitt and Thibaud Thumair for the Belle II collaboration — Max Planck Institute for Physics, Munich, Germany

The Belle II experiment at the SuperKEKB electron-positron collider started taking data in 2018. In this talk, we will focus on time-dependent measurements for B mesons using the new Pixel Vertex Detector. The increased precision on the vertex reconstruction will help to better constrain the CKM sector of the Standard Model of particle physics.

After shortly reviewing the first Belle II time-dependent measurements on CP violation and the mixing frequency in the B0 system, we will illustrate the various improved techniques being developed to achieve a high precision measurement of the B0 mixing frequency. These notably include the understanding and modelling of backgrounds and the decay time resolution in fully hadronic B0 decays.

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