Search Publications

Is There a Dark Matter Signal in the Galactic Positron Annihilation Radiation?

Rothschild, R. E.; Higdon, J. C.; Lingenfelter, R. E.

Assuming Galactic positrons do not go far before annihilating, a difference between the observed 511 keV annihilation flux distribution and that of positron production, expected from β⁺ decay in Galactic iron nucleosynthesis, was evoked as evidence of a new source and signal of dark matter. We show, however, that the dark matter sources…