Dynamical Relaxation of the Dark Matter to Baryon Ratio

Details Dynamical Relaxation of the Dark Matter to Baryon Ratio Dynamical Relaxation of the Dark Matter to Baryon Ratio

2004-07-30

arxiv.org/abs/astro-ph/0407646v2

Phys.Rev.D70:103526,2004

Astronomy and Astrophysics

Astrophysics

7 pages, 5 .eps figures. Discussion of the approach of the field to the fixed point added. Figures modified accordingly. Concl

Scientific paper

10.1103/PhysRevD.70.103526

A scalar field interacting differently with dark matter and baryons may
explain why their ratio is of order unity today. We provide three working
examples, checking them against the observations of CMB, Large Scale Structure,
supernovae Ia, and post-newtonian tests of gravity. Such a scenario could make
life much easier for supersymmetric dark matter candidates.

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