Radiative $\mu-\tau$ Corrections and Renormalization of Neutrino Mass Operators in Type II Seesaw Models

TL;DR

This paper investigates how quantum radiative corrections affect neutrino mass operators in Type II Seesaw models, focusing on the evolution of flavor matrices and the constraints from collider experiments.

Contribution

It provides a detailed analysis of radiative $b-tau$ corrections on neutrino mass operators within the Type II Seesaw framework, considering LHC bounds on triplet scalars.

Findings

Radiative corrections can significantly alter $b-tau$ symmetry predictions.

LHC constraints restrict the parameter space for viable models.

Quantum corrections remain consistent with experimental limits under certain conditions.

Abstract

We explore the impact of radiative $\mu-\tau$ corrections on the renormalization of neutrino mass operators in the Type II Seesaw framework, incorporating both dimension-five and dimension-six operators. Using renormalization group equations (RGE), we analyze the evolution of flavor coupling matrices and their deviations from $\mu-\tau$ symmetric configurations due to quantum corrections. Given the stringent constraints from the Large Hadron Collider (LHC) on the triplet scalar masses and couplings, we examine how these bounds influence the viability of $\mu-\tau$ symmetric seesaw models. Our analysis highlights the interplay between high-scale $\mu-\tau$ symmetry predictions and low-scale phenomenology, revealing whether radiative corrections remain within experimentally allowed limits.