Enhancement of the ${\bar{\nu }}_e$ flux from astrophysical sources by two photon annihilation interactions

Soebur Razzaque, Peter Meszaros, Eli Waxman

The ratio of anti-electron to total neutrino flux, ${\Phi }_{{\bar{\nu }}_e}:{\Phi }_{\nu }$, expected from $p\gamma$ interactions in astrophysical sources is $\le 1:15$. We point out that this ratio is enhance…