Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Snowmass2021 Cosmic Frontier White Paper:Primordial Black Hole Dark
  Matter   Primordial Black Holes (PBHs) are a viable candidate to comprise some or all
of the dark matter and provide a unique window into the high-energy physics of
the early universe. This white paper discusses the scientific motivation,
current status, and future reach of observational searches for PBHs. Future
observational facilities supported by DOE, NSF, and NASA will provide
unprecedented sensitivity to PBHs. However, devoted analysis pipelines and
theoretical modeling are required to fully leverage these novel data. The
search for PBHs constitutes a low-cost, high-reward science case with
significant impact on the high energy physics community.

19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph