Title: A Universal Particle: Exploring the Higgs sector at the LHC
Abstract: Since the 2012 discovery, study of the Higgs boson has been a centerpiece of physics at the Large Hadron Collider (LHC). All collider measurements to date, including those of the Higgs boson, have reinforced the success of the Standard Model. Why do we believe that will change, and where should we look? Many compelling questions in fundamental particle physics, such as the nature of dark matter and the emergence of a matter universe from a matter-antimatter symmetric initial state, are potentially connected to the physics of Higgs bosons. Improved measurements of the observed Higgs boson, searches for additional Higgs bosons, and searches for new particles decaying to Higgs bosons have essential and complementary roles. In the last year, the LHC has restarted operations at a center-of-mass energy of 13 TeV, the highest ever attained at a collider. I will review some recent Higgs boson search and measurement results from the ATLAS experiment, and how they form the foundations for a more complete exploration of the fundamental underpinnings of our universe.
HEP Feb26 flyer