Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The synergy between CMB spectral distortions and anisotropies   Spectral distortions and anisotropies of the CMB provide independent and
complementary probes to study energy injection processes in the early universe.
Here we discuss the synergy between these observables, and show the promising
future of spectral distortion missions to constrain both exotic and non-exotic
energy injections. We show that conventional probes such as Big Bang
Nucleosynthesis and CMB anisotropies can benefit from and even be surpassed by
future spectral distortion experiments. For this, we have implemented a unified
framework within the Boltzmann code CLASS to consistently treat the thermal
evolution of photons and baryons. Furthermore, we give an extensive and
pedagogical introduction into the topic of spectral distortions and energy
injections throughout the thermal history of the universe, highlighting some of
their unique features and potential as a novel probe for cosmology and particle
physics.

2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph