Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact of theoretical priors in cosmological analyses: the case of
  single field quintessence   We investigate the impact of general conditions of theoretical stability and
cosmological viability on dynamical dark energy models. As a powerful example,
we study whether minimally coupled, single field Quintessence models that are
safe from ghost instabilities, can source the CPL expansion history recently
shown to be mildly favored by a combination of CMB (Planck) and Weak Lensing
(KiDS) data. We find that in their most conservative form, the theoretical
conditions impact the analysis in such a way that smooth single field
Quintessence becomes significantly disfavored with respect to the standard LCDM
cosmological model. This is due to the fact that these conditions cut a
significant portion of the (w0;wa) parameter space for CPL, in particular
eliminating the region that would be favored by weak lensing data. Within the
scenario of a smooth dynamical dark energy parametrized with CPL, weak lensing
data favors a region that would require multiple fields to ensure gravitational
stability.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
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
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an