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SUMMARY:$f_K/f_{π}$ from a combination of Wilson and Wilson twisted mass 
 $N_f=2+1$ fermions
DTSTART:20260602T140000Z
DTEND:20260602T160000Z
DTSTAMP:20260628T170400Z
UID:indico-event-1678979@indico.cern.ch
DESCRIPTION:Speakers: Alejandro Saez Gonzalvo (Universitat de Valencia\, I
 FIC)\n\nWe present results for $f_K/f_{π}$ with $N_f=2+1$ flavors\, along
  with a determination of $|V_{us}|$ and a study on the unitarity of the fi
 rst row of the Cabibbo-Kobayashi-Maskawa (CKM) matrix after introducing st
 rong isospin-breaking and QED effects. The results obtained are based on a
  combination of a Wilson unitary action and a mixed action setup using Wil
 son twisted mass fermions in the valence\, based on CLS ensembles. The com
 bination of the two regularizations enables a more precise control over th
 e continuum limit extrapolation\, as both setups must share the same conti
 nuum limit\, yet can exhibit distinct cutoff effects.\n\nhttps://indico.ce
 rn.ch/event/1678979/\n\nZoom: https://cern.zoom.us/j/68098777127?pwd=U2FQN
 DFZNGVyWW5YOTViQncwUmJ3UT09
LOCATION:4/2-037 - TH meeting room (CERN)
URL:https://indico.cern.ch/event/1678979/
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