Two-Loop Renormalization of Effective Field Theories

Add to your list(s) Download to your calendar using vCal

• Luca Naterop (Zurich U.)
• Friday 24 October 2025, 16:00-17:00
• MR19 (Potter Room, Pavilion B), CMS.

If you have a question about this talk, please contact Nico Gubernari.

The renormalization group governs the scale dependence of couplings and operators, providing a systematic improvement to the perturbative 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 Effective Field Theory (LEFT), two central frameworks in modern particle physics. After briefly reviewing the key concepts of effective field theory, I will outline the main computational techniques used in our work: the ’t Hooft–Veltman scheme for \gamma_5, the tadpole method, and the R-operation. 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 chiral perturbation theory at two loops. The results contribute to a broader community effort toward extending the EFT framework to next-to-leading-logarithmic accuracy.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

This talk is included in these lists:

• All CMS events
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• CMS Events
• Centre for Health Leadership and Enterprise
• DAMTP info aggregator
• Featured lists
• HEP phenomenology joint Cavendish-DAMTP seminar
• HEP web page aggregator
• Interested Talks
• ME Seminar
• MR19 (Potter Room, Pavilion B), CMS
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• School of Technology
• Thin Film Magnetic Talks
• bld31
• few29

Note that ex-directory lists are not shown.