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SUMMARY:IFIC Seminar:  The beauty and the beast of the Higgs boson. Higgs 
 and Di-Higgs measures from a Flavour Tagging perspective
DTSTART;VALUE=DATE-TIME:20260915T100000Z
DTEND;VALUE=DATE-TIME:20260915T113000Z
DTSTAMP;VALUE=DATE-TIME:20260903T034836Z
UID:indico-event-8723@indico.ific.uv.es
DESCRIPTION:The Higgs boson couples most strongly to the heaviest fermions
 \, making the identification of beauty and charm jets -- flavour tagging -
 - the cornerstone of a large fraction of the ATLAS Higgs programme. This s
 eminar reviews the recent transition to transformer-based taggers\, from G
 N2 to GN3\, which has brought substantial gains in $b$- and $c$-jet identi
 fication over previous-generation algorithms\, together with the calibrati
 on strategies required to turn these gains into reliable physics results. 
 I will then discuss how these improvements propagate to Higgs measurements
 : the single-Higgs decays $H \\to b\\bar{b}$ and the still-elusive $H \\to
  c\\bar{c}$\, and the di-Higgs frontier\, where $HH \\to b\\bar{b}\\gamma\
 \gamma$ provides the sharpest handle on the Higgs self-coupling and $t\\ba
 r{t}HH$ searches probe the top-Higgs sector.\n\nhttps://indico.ific.uv.es/
 event/8723/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8723/
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