Abstract
If our galactic halo is composed of heavy (several gigaelectron- volts), weakly interacting particles, pair annihilation into a heavy-quark–antiquark bound state plus a monochromatic photon can produce potentially observable sharp peaks in the diffuse cosmic-γ-ray background.
- Received 20 November 1985
DOI:https://doi.org/10.1103/PhysRevLett.56.263
©1986 American Physical Society
