Limits on a possible violation of the strong equivalence principle from primordial nucleosynthesis

Details Limits on a possible violation of the strong equivalence principle from primordial nucleosynthesis Limits on a possible violation of the strong equivalence principle from primordial nucleosynthesis

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389....1s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 389, April 10, 1992, p. 1-4.

Astronomy and Astrophysics

Astrophysics

7

Astronomical Models, Cosmology, Light Elements, Nuclear Astrophysics, Nuclear Fusion, Abundance, Deuterium, Helium, Kinetic Theory, Lithium

Scientific paper

We present a detailed calculation of light element production in scale-covariant FRW cosmological models, where the modifications in the equations of nuclear kinetics due to scale-covariant kinetic theory effects are taken into account. The comparison of the results of our calculation with current observational data implies that the gauge function β(t) at primordial nucleosynthesis cannot deviate from its present value by more than a 1.5%. If we assume, as usual, that β is a power of time, these bounds leave little room for a possible strong equivalence principle violation.

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