Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Weyl-Cartan Gauss-Bonnet gravity   In this paper, we consider the generalized Gauss-Bonnet action in
$4$-dimensional Weyl-Cartan space-time. In this space-time, the presence of
torsion tensor and Weyl vector implies that the generalized Gauss-Bonnet action
will not be a total derivative in four dimension space-time. It will be shown
that the higher than two time derivatives can be removed from the action by
choosing suitable set of parameters. In the special case where only the trace
part of the torsion remains, the model reduces to GR plus two vector fields.
One of which is massless and the other is massive. We will then obtain the
healthy region of the 5-dimensional parameter space of the theory in some
special cases.

0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph