Barbara Anna Erdelyi (Padova), Studying the Higgs Boson within the Standard Model Effective Field Theory
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Europe/Amsterdam
Veltman
Veltman
Description
Since the discovery of the Higgs boson at the Large Hadron Collider in 2012, significant progress has been made in our understanding of its properties. At the same time, the Higgs sector continues to present opportunities for further theoretical and experimental research. Assuming the existence of heavy New Physics particles, the Standard Model Effective Field Theory offers a systematic parameterization of possible deviations from Standard Model predictions.
This talk addresses two distinct applications of this framework. First, I examine modifications to the Higgs couplings to light fermions arising from specific higher-dimensional operators, which are experimentally weakly constrained. I demonstrate that significant deviations can occur while remaining compatible with current experimental bounds. Secondly, I discuss the impact of renormalisation group evolution on Higgs–gluon couplings, with a focus on explicit two-loop effects.
