Operator bases in effective field theories with sterile neutrinos: d ≤ 9
نویسندگان
چکیده
A bstract We obtain the complete and independent bases of effective operators at mass dimension 5, 6, 7, 8, 9 in both standard model field theory with light sterile right-handed neutrinos ( ν SMEFT) low energy LEFT). These theories provide systematical parametrizations on all possible Lorentz-invariant physical effects involving Majorana/Dirac neutrinos, with/without lepton number violations. In SMEFT, we find that there are 2 (18), 29 (1614), 80 (4206), 323 (20400), 1358 (243944) included for one (three) generation fermions, while 24, 5223, 3966, 25425, 789426 LEFT two generations up-type quarks three other fermions.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep11(2021)003