Dark matter and the equivalence principle

If the dark matter in galaxies and clusters is nonbaryonic, it can interact with additional long-range fields that are invisible to experimental tests of the equivalence principle. The astrophysical and cosmological implications of a long-range force coupled only to the dark matter are discussed and...

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Bibliographic Details
Published in:Physical review letters 1991-11, Vol.67 (21), p.2926-2929
Main Authors: Frieman, Joshua A., Gradwohl, Ben-Ami
Format: Article
Language:English
Subjects:
662110 > General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
Astrophysics
BARYONS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COSMOLOGY
ELEMENTARY PARTICLES
EQUIVALENCE PRINCIPLE
Exact sciences and technology
FERMIONS
FIELD THEORIES
GALAXY CLUSTERS
General relativity and gravitation
HADRONS
LAGRANGIAN FIELD THEORY
NUCLEAR POTENTIAL
Other topics in general relativity and gravitation
PARAMETRIC ANALYSIS
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POTENTIALS
QUANTUM FIELD THEORY 661310 > Relativity & Gravitation-- (1992-)
TEMPERATURE DEPENDENCE
UNIVERSE
YUKAWA POTENTIAL
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Summary:If the dark matter in galaxies and clusters is nonbaryonic, it can interact with additional long-range fields that are invisible to experimental tests of the equivalence principle. The astrophysical and cosmological implications of a long-range force coupled only to the dark matter are discussed and rather tight constraints on its strength are found. If the force is repulsive (attractive), the masses of galaxy groups and clusters (and the mean density of the universe inferred from them) have been systematically underestimated (overestimated). Such an interaction also has unusual implications for the growth of large-scale structure.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.67.2926