Possible Evidence for the Existence of Antimatter on a Cosmological Scale in the Universe
Abstract
We present some initial results of a detailed calculation of the cosmological γ-ray spectrum from matter-antimatter annihilation in the universe. The similarity of the calculated spectrum with the present observations of the γ-ray background spectrum above 1 MeV suggests that such observations may be evidence of the existence of antimatter on a large scale in the universe.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1971
- DOI:
- 10.1103/PhysRevLett.27.1469
- Bibcode:
- 1971PhRvL..27.1469S