Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalar-tensor extension of Natural Inflation   We show that embedding Natural Inflation in a more general scalar-tensor
theory, with non-minimal couplings to the Ricci scalar and the kinetic term,
alleviates the current tension of Natural Inflation with observational data.
The coupling functions respect the periodicity of the potential and the
characteristic shift symmetry $\phi \rightarrow \phi + 2\pi f$ of the original
Natural Inflation model, and vanish at the minimum of the potential.
Furthermore, showing that the theory exhibits a rescaling symmetry in the
regime where the coupling to the Ricci scalar is small and the coupling to the
kinetic term is large, we obtain that the agreement with cosmological data can
take place at an arbitrarily low periodicity scale $f$, solving at tree-level
the problem of super-Planckian periodicity scales needed in Natural Inflation.

9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph