Dark matter, time-varying G, and a dilaton field

Details Dark matter, time-varying G, and a dilaton field Dark matter, time-varying G, and a dilaton field

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..64..123d&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 64, Jan. 8, 1990, p. 123-126.

Astronomy and Astrophysics

Astronomy

204

Dark Matter, Gravitational Constant, String Theory, Astronomical Models, Scalars, Universe

Scientific paper

The observational viability of having an exactly massless dilaton field couple with gravitational strength to most matter in the universe is demonstrated. This is done by contructing a generalized Jordan-Brans-Dicke model in which the scalar couples with different strengths to visible and to conjectured 'dark' matter. In this model, improved G measurements may provide nontrivial bounds on the coupling constants of the dilaton to matter.

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