Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black holes in Gauss-Bonnet and Chern-Simons-scalar theory   We carry out the stability analysis of the Schwarzschild black hole in
Gauss-Bonnet and Chern-Simons-scalar theory. Here, we introduce two quadratic
scalar couplings ($\phi_1^2,\phi_2^2$) to Gauss-Bonnet and Chern-Simons terms,
where the former term is parity-even, while the latter one is parity-odd. The
perturbation equation for the scalar $\phi_1$ is the Klein-Gordon equation with
an effective mass, while the perturbation equation for $\phi_2$ is coupled to
the parity-odd metric perturbation, providing a system of two coupled
equations. It turns out that the Schwarzschild black hole is unstable against
$\phi_1$ perturbation, leading to scalarized black holes, while the black hole
is stable against $\phi_2$ and metric perturbations, implying no scalarized
black holes.

31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys