Tree-level UV completions for N_RSMEFT d=6 and d=7 operators

2023/06/21 by Rebeca Beltrán, Beltrán, Rebeca, Ricardo Cepedello +3 · 1 citation
Physics and Astronomy · #Particle physics theoretical and experimental studies #Black Holes and Theoretical Physics #Neutrino Physics Research

paper · pdf · doi:10.48550/arxiv.2306.12578

Abstract

We study ultra-violet completions for operators in standard model effective field theory extended with right-handed neutrinos (N_RSMEFT). Using a diagrammatic method, we generate systematically lists of possible tree-level completions involving scalars, fermions or vectors for all operators at d=6 and d=7, which contain at least one right-handed neutrino. We compare our lists of possible UV models to the ones found for pure SMEFT. We also discuss how the observation of LNV processes via N_RSMEFT operators at the LHC can be related to Majorana neutrino masses of the standard model neutrinos.

Cited by

• Long-Lived HNLs via ALP Portal at the LHC

Related

• Radiative neutrino masses from dim-7 SMEFT: a simplified multi-scale approach
• SMEFT goes dark: Dark Matter models for four-fermion operators
• FeynRules and UFO model files for νSMEFT: Higgs-N_R operators of dimensions five and six
• Completing the one-loop νSMEFT Renormalization Group Evolution
• Squeezing Proton Decay and Neutrino Masses: Upper Bounds on Standard Model Extensions