Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of density perturbations due to the birth of baryons   Generation of adiabatic density perturbations from fluctuations caused by the
birth of baryons is considered. This is based on the scenario of baryogenesis
in which the birth of protons takes place at the temperature equal to the mass
of electron.

3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc