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SUMMARY:dr Magdalena Sławińska (IFJ PAN): Higgs couplings to di-bosons: 
 overview of recent measurements by the ATLAS experiment at the LHC and pro
 spects for HL-LHC
DTSTART:20260410T081500Z
DTEND:20260410T090000Z
DTSTAMP:20260429T025900Z
UID:indico-event-446@indico.fis.agh.edu.pl
DESCRIPTION:Abstract:\n\nThe Higgs boson is the last discovered particle o
 f the Standard Model (SM) and the only known fundamental scalar. It crowns
  the theoretical construction of the SM by providing masses to electroweak
  bosons through the mechanism of spontaneous electroweak symmetry breaking
 . The essential feature of this mechanism is the famous “Mexican hat” 
 potential with non-zero vacuum expectation value. Measurements of Higgs bo
 son coupling strengths to bosons and fermions\, in agreement with SM predi
 ctions\, have experimentally confirmed the Brout-Englert-Higgs mechanism o
 f electroweak symmetry breaking. With more data being collected by the LHC
 \, more subtle properties of the Higgs boson can be revealed. These measur
 ements will either confirm the SM nature of this particle\, leading to a b
 etter understanding of the SM\, or hint at the existence of beyond Standar
 d Model (BSM) interactions. I will present results of two sets of studies 
 performed by the ATLAS experiment aimed at measuring of the Higgs boson po
 tential and searching for BSM deviations to its shape. One set of these me
 asurements constrains Higgs bosons self-interactions. It is performed by s
 tudying the production of the Higgs boson pairs. Due to a very small SM cr
 oss-section for the di-Higgs production\, an observation of this process w
 ith the currently available data would hint to the presence of BSM phenome
 na in the Higgs sector. The other class of measurements focuses on Higgs b
 oson couplings to massive electroweak bosons\, thus probing the Higgs pote
 ntial at its minimum.\n\n \nImportant: This seminar is held in building
  D-11 room 104. \n\nhttps://indico.fis.agh.edu.pl/event/446/
URL:https://indico.fis.agh.edu.pl/event/446/
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