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Two-loop renormalization group equations for right-handed neutrino masses and phenomenological implications
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We calculate the two-loop beta functions of the right-handed neutrino mass matrix in the Standard Model extended with right-handed neutrinos. We show that two-loop quantum effects induced by the heavier right-handed neutrinos can induce sizable contributions (sometimes dominant) to the physical masses of the lighter right-handed neutrinos. These effects can significantly affect the masses of the active neutrinos in the seesaw mechanism and the low energy phenomenology.
Forward citations
Cited by 2 Pith papers
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Complete Two-loop Renormalization Group Equation of the Weinberg Operator
The full two-loop renormalization group equation of the dimension-5 Weinberg operator in the Standard Model is derived, completing the two-loop RGE program of SMEFT up to dimension 5.
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A non-supersymmetric SU(5) GUT with a 200F quintuplet dark matter and two TeV-scale sextet fermion pairs can achieve gauge coupling unification near the Planck scale.
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