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SUMMARY:Two-Loop Renormalization of Effective Field Theories - Luca Natero
 p (Zurich U.)
DTSTART:20251024T150000Z
DTEND:20251024T160000Z
UID:TALK236209@talks.cam.ac.uk
CONTACT:Nico Gubernari
DESCRIPTION:The renormalization group governs the scale dependence of coup
 lings and operators\, providing a systematic improvement to the perturbati
 ve expansion of quantum field theory. In this talk\, I will present recent
  progress in deriving the two-loop renormalization group equations for the
  Standard Model Effective Field Theory (SMEFT) and the Low-Energy Effectiv
 e Field Theory (LEFT)\, two central frameworks in modern particle physics.
  After briefly reviewing the key concepts of effective field theory\, I wi
 ll outline the main computational techniques used in our work: the ’t Ho
 oft–Veltman scheme for \\gamma_5\, the tadpole method\, and the R-operat
 ion. I will also discuss the geometric formulation of EFTs\, where fields 
 are treated as coordinates on a manifold. These methods are applied to the
  renormalization of the LEFT\, the scalar SMEFT\, the O(n) EFT\, and chira
 l perturbation theory at two loops. The results contribute to a broader co
 mmunity effort toward extending the EFT framework to next-to-leading-logar
 ithmic accuracy.
LOCATION:MR19 (Potter Room\, Pavilion B)\, CMS
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