Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Primordial Black Hole Formation During Slow Reheating After Inflation   We study the formation of primordial black holes (PBHs) in the early Universe
during a period of slow reheating after inflation. We demonstrate how the PBH
formation mechanism may change even before the end of the matter-dominated
phase and calculate the expected PBH mass function. We find that there is a
threshold for the variance of the density contrast, $\sigma_c \simeq 0.05$,
below which the transition occurs even before reheating, with this having
important consequences for the PBH mass function. We also show that there is a
maximum cut-off for the PBH mass at around $100\,M_{\odot}$, below which the
subdominant radiation bath affects PBH production, making the scenario
particularly interesting for the recent LIGO observations of black hole
mergers.

37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas