Two loop renormalization of scalar theories using a geometric approach
Journal Article
·
· Journal of High Energy Physics (Online)
- Univ. of California, San Diego, CA (United States). Dept. of Physics
- Univ. of California, San Diego, CA (United States). Dept. of Physics; Univ. of Zurich (Switzerland); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
We derive a general formula for two-loop counterterms in Effective Field Theories (EFTs) using a geometric approach. This formula allows the two-loop results of our previous paper to be applied to a wide range of theories. The two-loop results hold for loop graphs in EFTs where the interaction vertices contain operators of arbitrarily high dimension, but at most two derivatives. We also extend our previous one-loop result to include operators with an arbitrary number of derivatives, as long as there is at most one derivative acting on each field. The final result for the two-loop counterterms is written in terms of geometric quantities such as the Riemann curvature tensor of the scalar manifold and its covariant derivatives. As applications of our results, we give the two-loop counterterms and renormalization group equations for the O(n) EFT to dimension six, the scalar sector of the Standard Model Effective Field Theory (SMEFT) to dimension six, and chiral perturbation theory to order p6.
- Research Organization:
- Univ. of California, San Diego, CA (United States)
- Sponsoring Organization:
- Swiss National Science Foundation; USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0009919
- OSTI ID:
- 2575987
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 2 Vol. 2024; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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