Galactic cosmic strings as sources of primary antiprotons
- 15 June 1996
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 53 (12) , R6711-R6714
- https://doi.org/10.1103/physrevd.53.r6711
Abstract
A possible signature of a class of superconducting cosmic strings trapped in the Milky Way plasma is the emission of low energy antiprotons due to baryon-number-violating processes on the string. We find the terrestrial flux and the energy spectrum of such antiprotons. Current observational bounds on the flux of low energy antiprotons place a lower bound on the string tension which is comparable to that given by the electroweak scale.Keywords
All Related Versions
This publication has 9 references indexed in Scilit:
- GAMMA RAYS FROM SMALL SCALE STRUCTURES ON LONG COSMIC STRINGSInternational Journal of Modern Physics D, 1993
- Grand unified theories, topological defects, and ultrahigh-energy cosmic raysPhysical Review Letters, 1992
- Cosmic-ray secondary antiprotons - A closer lookThe Astrophysical Journal, 1992
- Strings in the Sun?Physical Review Letters, 1988
- Superheavy superconducting cosmic strings from superstring modelsPhysics Letters B, 1987
- Superconducting cosmic stringsPhysical Review D, 1986
- Phenomenology and cosmology with superstringsPhysical Review Letters, 1986
- Superconducting stringsNuclear Physics B, 1985
- On the Origin of the Cosmic RadiationPhysical Review B, 1949