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A package for renormalization group running in the SMEFT with sterile neutrinos

Year: 2025
Type: article
Abstract: Sterile neutrinos are well-motivated beyond the Standard Model (BSM) particles. The Standard Model Effective Field Theory (SMEFT) augmented with these new fields is known as the $$\nu $$ ν SMEFT. We present the first code for solving the renormalization group equations (RGEs) of the $$\nu $$ ν SMEFT in an automated way. For this purpose, we have implemented the $$\nu $$ ν SMEFT as a new effective field theory (EFT) in the Wilson coefficient exchange format . Furthermore, we included anomalous dimensions depending on the gauge couplings and Yukawas in the python package . This novel version of allows a consistent inclusion of $$\nu $$ ν SMEFT renormalization group (RG) running effects above the electroweak (EW) scale in phenomenological studies involving sterile neutrinos. Moreover, this new release allows us to study EW, strong, and Yukawa running effects separately within the SMEFT.
DOI: 10.1140/epjc/s10052-025-14127-8
Institutions: European Organization for Nuclear Research, Centre National de la Recherche Scientifique, Université Paris-Saclay, Institut National de Physique Nucléaire et de Physique des Particules, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Los Alamos National Laboratory
Language: English
Open Access status: diamond
Funders: U.S. Department of Energy, European Commission, National Nuclear Security Administration, Laboratory Directed Research and Development, Los Alamos National Laboratory, HORIZON EUROPE Marie Sklodowska-Curie Actions
Awards: G1017065088, G1279347439, Two-loop renormalization of the SMEFT and the WET, G2356915424, G434337789, G4408145423, G5264155601, G5601966628, G6410514744, G6442673638, G6563880843
OpenAlex ID: W4410211900
FWCI: 2.363
Cites: 45
Cited by: 5
Related to: 10