Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PBH evaporation, baryon asymmetry,and dark matter   Sufficiently light primordial black holes (PBH) could evaporate in the very
early universe and dilute the preexisting baryon asymmetry and/or the frozen
density of stable relics. The effect is especially strong in the case that PBHs
decayed if and when they dominated the cosmological energy density. The size of
the reduction is first calculated analytically under the simplifying assumption
of the delta-function mass spectrum of PBH and in instant decay approximation.
In the realistic case of exponential decay and for an extended mass spectrum of
PBH the calculations are made numerically. Resulting reduction of the frozen
number density of the supersymmetric relics opens for them a wider window to
become viable dark matter candidate.

5
The categories of this paper are: gr-qc
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The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th