Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57..473k&link_type=abstract
(Astronomicheskii Zhurnal, vol. 57, May-June 1980, p. 473-479.) Soviet Astronomy, vol. 24, May-June 1980, p. 273-276. Translati
Astronomy and Astrophysics
Astronomy
2
Cosmology, Gravitational Waves, Gravitons, High Energy Interactions, Elementary Particles, Particle Production, Universe
Scientific paper
The possible influence of high-energy microprocesses in matter upon the primordial gravitational-wave spectrum is examined. Changes in the equation of state of matter and a violation of charge symmetry will serve to create real gravitons whose spectrum falls off exponentially as the momentum increases. On the other hand, if real gravitons are produced through the presence of heavy elementary particles, the graviton spectrum will have a power-law momentum dependence. Although the energy density of the real gravitons formed by virtue of these three effects would be small compared with the energy density of matter, one cannot rule out the possibility that their energy densities might have been of the same order during the early evolution of the universe.
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