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SUMMARY:Precise measurement of the fs/fd ratio of fragmentation fractions 
 and of B0s decay branching fractions - Mick Mulder (CERN)
DTSTART:20210608T150000Z
DTEND:20210608T160000Z
UID:TALK158551@talks.cam.ac.uk
CONTACT:William Fawcett
DESCRIPTION:The Bs meson provides an excellent tool for studying many aspe
 cts of the Standard Model\,\nthrough its production (QCD)\, propagation (n
 eutral meson mixing)\, and decay (weak interactions).\nIn this seminar\, I
  will present recent measurements of Bs meson production and branching fra
 ctions with the LHCb detector.\nThe new measurement of Bs meson production
  has a significantly smaller uncertainty than previous measurements and sh
 ows intriguing dependencies on b-hadron pT and pp collision centre-of-mass
  energy. The resulting improvement in the precision of Bs meson branching 
 fractions is shown by recent measurements\nof rare Bs meson decays\, which
  are mediated by the flavour changing neutral current transition 𝑏→
 𝑠ℓ+ℓ− and show interesting deviations from SM predictions
LOCATION:https://cern.zoom.us/j/61144924828?pwd=WDB6QmFCMEZiSEN5Q0k2aklWSj
 k5Zz09
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