Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exploring the effects of a double reconstruction on the growth rate of
  cosmic structure, using current observational data   Based on General Relativity (GR) we consider two different cosmological
scenarios in where reconstruct the energy exchange (Q) between cold dark matter
(DM) fluid and dark energy (DE) fluid, which is modelled with a DE varying
equation of state (EoS) parameter {\omega}. We here investigate the main
cosmological effects on the growth rate of matter density perturbations
(f{\sigma}8), on the effective Hubble friction term (Heff ), on the effective
Newton constant (Geff ) and on the growth index of the linear matter
fluctuations ({\gamma}). Our study demonstrates that in the coupled models the
evolution of these quantities are modified with respect to the predictions in
the uncoupled models, and therefore could be used to distinguish among coupled
DE scenarios. Finally, we also perform a combined statistical analysis using
current observational data (geometric and dynamical probes) to put more
stringent constraints on the parameters space of the cosmic scenarios studied.

22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph