PT Journal
AU Beltran, R
   Cepedello, R
   Hirsch, M
TI Tree-level UV completions for NRSMEFT d=6 and d=7 operators
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2023
BP 31pp
VL 08
IS 8
DI 10.1007/JHEP08(2023)166
LA English
DE Baryon/Lepton Number Violation; SMEFT; Sterile or Heavy Neutrinos
AB We study ultra-violet completions for operators in standard model effective field theory extended with right-handed neutrinos (NRSMEFT). 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 NRSMEFT operators at the LHC can be related to Majorana neutrino masses of the standard model neutrinos.
ER