Cosmic Neutrino Flavor Ratios with Broken ${\nu }_{\mu }-{\nu }_{\tau }$ Symmetry

Lingjun Fu, Chiu Man Ho, Thomas J. Weiler

Reactor neutrino experiments have now observed a nonzero value for ${\theta }_{13}$ at $5\sigma$, and global fits to data imply a nonzero value above $10\sigma$. Nonzero values for ${\theta }_{13}$ and/or $…