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SUMMARY:Testing the unitarity of the CKM matrix. Radiative corrections to 
 weak decays of hadrons from Lattice QCD+QED
DTSTART:20260327T103000Z
DTEND:20260327T120000Z
DTSTAMP:20260506T084300Z
UID:indico-event-50640@agenda.infn.it
DESCRIPTION:Speakers: Davide Giusti\n\nWith the advancement of precision p
 hysics in the Flavor sector\, tests of the unitarity of the Cabibbo-Kobaya
 shi-Maskawa (CKM) quark mixing matrix are playing an increasingly signific
 ant and impactful role in understanding the limits of the Standard Model o
 f particle physics.\nAchieving exquisite precision in current and future e
 xperiments requires theoretical predictions to better control low-energy h
 adronic effects\, which\, thanks to the growing potential of supercomputin
 g and advances in non-perturbative techniques\, can now be achieved by the
  most modern numerical simulations of lattice QCD\, including the effects 
 of long-range electromagnetic interaction.\nAfter a review of the state of
  the art in the field for the accurate extraction of the elements of the C
 KM matrix\, in this seminar I will illustrate some new lattice results\, u
 sing domain wall chiral fermions\, on the form factors contributing to the
  amplitudes of radiative leptonic decays of light and heavy mesons\, $H \\
 to \\ell \\nu_\\ell \\gamma$\, including multiple virtualities of the emit
 ted photon for the study of rare four-lepton decays\, such as $H \\to \\el
 l^{\\prime +} \\ell^{\\prime -} \\ell \\nu_\\ell$ or $H \\to \\ell^{\\prim
 e +} \\ell^{\\prime -} \\ell^+ \\ell^-$.\nIn addition\, I will present som
 e recent efforts and the new program of the BMW collaboration in the study
  of the unitarity of the first row of the CKM matrix.\nThis activity is pa
 rt of the Theoretical Phenomenology Visiting Institute@LNF\, running from 
 23 March to 27 March 2026\, and supported by CSN4 to promote the participa
 tion of early-career scientists.\n \n \n \n \n \n \n \n \n \n \n
 \nhttps://agenda.infn.it/event/50640/
LOCATION:Aula Seminari (Laboratori Nazionali di Frascati)
URL:https://agenda.infn.it/event/50640/
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