Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higgs-Dilaton Cosmology: From the Early to the Late Universe   We consider a minimal scale-invariant extension of the Standard Model of
particle physics combined with Unimodular Gravity formulated in
\cite{Shaposhnikov:2008xb}. This theory is able to describe not only an
inflationary stage, related to the Standard Model Higgs field, but also a late
period of Dark Energy domination, associated with an almost massless dilaton. A
number of parameters can be fixed by inflationary physics, allowing to make
specific predictions for any subsequent period. In particular, we derive a
relation between the tilt of the primordial spectrum of scalar fluctuations,
$n_s$, and the present value of the equation of state parameter of dark energy,
$\omega_{DE}^0$. We find bounds for the scalar tilt, $n_s<0.97$, the associated
running, $-0.0006<d\ln n_s/d\ln k\lesssim-0.00015$, and for the
scalar-to-tensor ratio, $0.0009\lesssim r<0.0033$, which will be critically
tested by the results of the Planck mission. For the equation of state of dark
energy, the model predicts $\omega_{DE}^0>-1$. The relation between $n_s$ and
$\omega_{DE}^0$ allows us to use the current observational bounds on $n_s$ to
further constrain the dark energy equation of state to $0< 1+\omega_{DE}^0<
0.02$, which is to be confronted with future dark energy surveys.

14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys