Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: No Miracle in Gravity Portals   The idea of dark matter particles coupled only gravitationally is minimalist
yet viable. Assuming an additional $Z_2$-breaking linear coupling of scalar
curvature to the dark matter scalar (gravity portal) Refs. arXiv:1603.03696 and
arXiv:1611.00725 claimed a strong parametric growth of the dark matter particle
decay rate with its mass, which implies pronounced phenomenological signatures
for the model. This peculiarity was attributed by the authors to the
enhancement due to the presence of longitudinal gauge bosons in the final
state. Quite unfortunately there were overlooked cancellations in the
tree-level amplitudes. There is no miracle: all perturbative decay rates are
suppressed by the strong coupling scale.

13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat