Anomalous dimensions from Yukawa couplings in SMNEFT: four-fermion operators
Alakabha Datta, Jacky Kumar, Hongkai Liu, Danny Marfatia
TL;DR
This paper computes the one-loop anomalous dimensions for four-fermion operators in SMNEFT, highlighting the effects of Yukawa couplings involving right-handed neutrinos, thus advancing the understanding of operator mixing in this effective theory.
Contribution
It provides the first calculation of Yukawa coupling contributions to anomalous dimensions for four-fermion operators in SMNEFT, including mixing effects with SMEFT operators.
Findings
Yukawa contributions to anomalous dimensions are quantified.
Mixing between SMNEFT and SMEFT four-fermion operators is characterized.
Results enhance precision in effective field theory analyses involving neutrinos.
Abstract
The Standard Model Neutrino Effective Field Theory (SMNEFT) is the Standard Model Effective Field Theory (SMEFT) augmented with right-handed neutrinos. Building on our previous work, arXiv:2010.12109, we calculate the Yukawa coupling contributions to the one-loop anomalous dimension matrix for the 11 dimension-six four-fermion SMNEFT operators. We also present the new contributions to the anomalous dimension matrix for the 14 four-fermion SMEFT operators that mix with the SMNEFT operators through the Yukawa couplings of the right-handed neutrinos.
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