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Seminar | High Energy Physics

Higgs Boson Decay as a Probe to New Physics Beyond the Standard Model

HEP Seminar

Abstract: Despite being a remarkably simple theoretical model, the Higgs mechanism is the only known theory that is connected to some of the most profound mysteries in the modern physics: dark energy, dark matter, and missing antimatter. Measurements of the Higgs boson decay may shed light on those open questions.

In this talk, I will present a few results from the ATLAS experiment on Higgs boson decay: the first observation of Higgs boson decay to a pair of b-quarks, which had eluded us for many years despite being the most probable Higgs decay channel; novel techniques to search for potential new physics using the hadronically decaying Higgs boson, and a first search for singly produced long-lived neutral particle that may be realized via Higgs portal. The talk will mainly focus on general descriptions of the measurements without too much technical details, so that the content is accessible to nonexperimental collider physicists.