Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Infrared finiteness of theories with bino-like dark matter at finite
  temperature   Models incorporating moderately heavy dark matter (DM) typically need charged
(scalar) fields to establish admissible relic densities. Since the DM freezes
out at an early epoch, thermal corrections to the cross sections can be
important. In a companion paper [arXiv:1812.04247v2] we established that the
infrared (IR) divergences accruing from scalar-photon interactions cancel to
all orders in perturbation theory. The corresponding infrared finiteness of
thermal fermionic QED has already been established. Here, we study the IR
behaviour at finite temperatures, of a theory of dark matter interacting with
charged scalars and fermions, which potentially contains both both linear and
sub-leading logarithmic divergences. We prove that the theory is IR-finite to
all orders with the divergences cancelling when both absorption and emission of
photons from and into the heat bath are taken into account. While 4-point
interaction terms are known to be IR finite, their inclusion leads to a neat
exponentiation. The calculation follows closely the technique used for the
scalar finite temperature theory.

23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol