Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...189....4w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 189, no. 1-2, Jan. 1988, p. 4-6. NSERC-supported research.
Astronomy and Astrophysics
Astrophysics
19
Elementary Particles, Particle Mass, Time Dependence, Universal Time, Astronomical Models, Cosmology, Universe
Scientific paper
Attention was drawn recently to the curious fact that many astrophysical systems have properties consistent not only with the conventional belief that the rest masses of their constituent particles are constant, but also with the belief that the masses change slowly with cosmological time, a situation that can best be explained by a five-dimensional Kaluza-Klein type of gravitational theory (Wesson, 1986). In the present note, the relation between the rest mass of a particle and the choice of time coordinate is discussed. If rest masses were significantly smaller in the early universe than now, the scattering cross sections of particles for photons would have been larger, which would have affected the propagation of background radiation. Other areas of cosmology would also need reexamination.
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