Time-dependent and rare probes of the Standard Model: status at Belle II

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• Thibaud Humair (Max Planck Institute for Physics)
• Tuesday 25 October 2022, 11:00-12:00
• Ryle Seminar Room.

If you have a question about this talk, please contact William Fawcett.

The Belle II detector at the superKEKB electron-positron collider is a heavy flavour factory that started collecting data in 2019. It is expected to collect a much larger dataset than its predecessor, the Belle detector. One important class of measurements at Belle II concerns measurements using B meson decays that constrain the CKM unitarity triangle. They give insights into the origin of the asymmetry between matter and anti-matter and provide a precision test of the CKM sector of the Standard Model. Another complementary way to put the Standard Model to test is to study rare, so-called penguin, decays of B mesons that are expected to be sensitive to New Physics. In recent years, tantalizing discrepancies have been observed in these decays and confirmation from Belle II about whether or not these discrepancies are the first sign of New Physics is much awaited. In this seminar, I will present recent Belle II results about rare decays and precision CKM measurements. Concerning the latter, I will especially focus on time-dependent decay measurements. Upcoming Belle II measurements will allow for testing the Standard Model predictions to the ultimate precision, in a complementary way to LHCb.

This talk is part of the Cavendish HEP Seminars series.

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• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
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