Masses and spins in curved space-time

Details Masses and spins in curved space-time Masses and spins in curved space-time

Jun 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974phrvd...9.3228m&link_type=abstract

Physical Review D, vol. 9, Issue 12, pp. 3228-3234

Mathematics

Logic

11

Scientific paper

The Poincaré and de Sitter groups are well known to imply a deep connection between the structure of space-time and particle properties (mass and spin) for cosmological models with constant four-dimensional curvature. An analogous relationship is constructed for any isotropic spatially homogeneous cosmological model. The spin is proved to be constant; a time variation of the masses of all physical systems may well exist. It is shown that the variation m~t-1, which arises in the context of the Friedmann model, is not precluded by present observational and experimental evidence.

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