BNL Physics Colloquia

Precision predictions using effective field theories

by Sebastian Jaskiewicz (Bern U.)

US/Eastern
Large Seminar Room

Large Seminar Room

Description
 
Precise theoretical predictions are essential for carrying out tests of the Standard Model and searching for physics beyond it. Regions of phase space with disparate energy scales in scattering processes at colliders give rise to large corrections, which need to be understood to all orders in perturbation theory. In this talk, I will discuss how EFTs enable systematically improvable predictions in the presence of large scale hierarchies. I will showcase how the effective field theory framework can be utilised to gain control over the sizeable mass corrections in di-Higgs production process as required for measurements of the Higgs self-coupling which is one of the key objectives for HL-LHC. I will highlight recent developments in EFTs, which enable factorization and resummation of these large corrections beyond the leading approximation in the power expansion and how these can be used to improve perturbative predictions.
 
Organised by

Peter Boyle

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