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.
|Physical Review D - Particles, Fields, Gravitation and Cosmology
|Published - 1996
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)