Possibility of observing Leptonic CP violation with perturbed Democratic mixing patterns

TL;DR

This paper explores whether recent measurements of neutrino mixing angles can be explained by modified Democratic mixing patterns and assesses the potential for observing leptonic CP violation.

Contribution

It investigates how perturbations to Democratic mixing matrices can account for non-zero b8_{13} and the implications for detecting leptonic CP violation.

Findings

Modified Democratic mixing matrices can accommodate observed b8_{13} values.

Certain perturbations suggest observable leptonic CP violation.

The study provides a framework linking mixing pattern modifications to CP violation detection.

Abstract

The Daya Bay Collaboration has recently reported the precise measurement of $\theta_{13}\simeq 8.8^\circ \pm 0.8^\circ $ or $\theta_{13} \neq 0$ at 5.2 \sigma level. The observed non-zero $\theta_{13}$ can be accommodated by some general modifications to the Democratic mixing matrix. Using such matrices we study the possibility of observing non-zero CP violation in the leptonic sector.