Speaker
Description
The Higgs sector is a unique part of the Standard Model in particle
physics. Even after the discovery of the Higgs boson in 2012 at the
Large Hadron Collider (LHC), the complete picture of the Higgs sector is
still uncovered. The ATLAS experiment is one of the two experiments that discovered the Higgs boson and can directly see it in proton-proton
collisions. It has measured the nature of the Higgs boson, for example,
its coupling with the gauge bosons and the fermions, during the first
and second operation phases. The self-couplings of the Higgs boson have recently been becoming interesting in understanding the potential of the Higgs fields. High statistics are essential for observing the Higgs
self-couplings, and the phase-II upgrades of the LHC and ATLAS detectors have begun towards the start of operation in 2030. In this talk, I will summarize the recent hot results on the Higgs sector from the ATLAS experiment and the prospects of the current operation and the phase-II upgrade with the KMI activities in ATLAS.
