1,548 research outputs found
A model of interacting dark fluids tested with supernovae and Baryon Acoustic Oscillations data
We compare supernovae and Baryon Acoustic Oscillations data to the
predictions of a cosmological model of interacting dark matter and dark energy.
This theoretical model can be derived from the effective field theory of
Einstein-Cartan gravity with two scaling exponents and
, related to the interaction between dark matter and dark
energy. We perform a fit to the data to compare and contrast it with
the standard CDM model. We then explore the range of parameter of the
model which gives a better than the standard cosmological model. All
those results lead to tight constraints on the scaling exponents of the model.
Our conclusion is that this class of models, provides a decent alternative to
the CDM model.Comment: 7 pages, 2 figures, 1 table, matches published versio
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