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SUMMARY:Time-dependent and rare probes of the Standard Model: status at Be
 lle II - Thibaud Humair (Max Planck Institute for Physics)
DTSTART:20221025T100000Z
DTEND:20221025T110000Z
UID:TALK177176@talks.cam.ac.uk
CONTACT:William Fawcett
DESCRIPTION:The Belle II detector at the superKEKB electron-positron colli
 der is a heavy flavour factory that started collecting data in 2019. It is
  expected to collect a much larger dataset than its predecessor\, the Bell
 e detector.  One important class of measurements at Belle II concerns meas
 urements using B meson decays that constrain the CKM unitarity triangle. T
 hey 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 Mod
 el. Another complementary way to put the Standard Model to test is to stud
 y rare\, so-called penguin\, decays of B mesons that are expected to be se
 nsitive to New Physics. In recent years\, tantalizing discrepancies have b
 een observed in these decays and confirmation from Belle II about whether 
 or not these discrepancies are the first sign of New Physics is much await
 ed. In this seminar\, I will present recent Belle II results about rare de
 cays and precision CKM measurements. Concerning the latter\, I will especi
 ally focus on time-dependent decay measurements. Upcoming Belle II measure
 ments will allow for testing the Standard Model predictions to the ultimat
 e precision\, in a complementary way to LHCb.
LOCATION:Ryle Seminar Room
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