Revisiting the Quark-Lepton Complementarity and Triminimal Parametrization of Neutrino Mixing Matrix

TL;DR

This paper investigates a neutrino mixing matrix parametrization based on quark-lepton complementarity, analyzing its testability through oscillation probabilities, neutrino fluxes, and lepton flavor violation, and compares it with the triminimal approach.

Contribution

It introduces a parametrization reflecting quark-lepton complementarity and compares it with the triminimal approach to understand its distinct features and testability.

Findings

The parametrization can be probed via phase-averaged oscillation probabilities.

Distinct features differentiate it from the triminimal parametrization.

Potential observable effects in neutrino fluxes and lepton flavor violating decays.

Abstract

We examine how a parametrization of neutrino mixing matrix reflecting quark-lepton complementarity can be probed by considering phase-averaged oscillation probabilities, flavor composition of neutrino fluxes coming from atmospheric and astrophysical neutrinos and lepton flavor violating radiative decays. We discuss about some distinct features of the parametrization by comparing with the triminimal parametrization of perturbations to tri-bimaximal neutrino mixing matrix.