One-Loop RGEs for Dimension-8 Four-Fermion Operators in SMEFT
Analysis
This paper provides a complete calculation of one-loop renormalization group equations (RGEs) for dimension-8 four-fermion operators within the Standard Model Effective Field Theory (SMEFT). This is significant because it extends the precision of SMEFT calculations, allowing for more accurate predictions and constraints on new physics. The use of the on-shell framework and the Young Tensor amplitude basis is a sophisticated approach to handle the complexity of the calculation, which involves a large number of operators. The availability of a Mathematica package (ABC4EFT) and supplementary material facilitates the use and verification of the results.
Key Takeaways
- •Provides complete one-loop RGEs for dimension-8 four-fermion operators in SMEFT.
- •Employs an on-shell framework and Young Tensor amplitude basis for the calculation.
- •Offers a Mathematica package (ABC4EFT) and supplementary material for practical use and verification.
“The paper computes the complete one-loop renormalization group equations (RGEs) for all the four-fermion operators at dimension-8 Standard Model Effective Field Theory (SMEFT).”