Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time dependent models for Li, Be and B production in the early Galaxy   We calculate the light element production induced by the explosion of an
isolated supernova in the ISM. We use a time-dependent model and consider
energetic particles accelerated at the forward (process~1) and reverse
(process~2) shocks. Both processes are primary, but are shown to underproduce
Be and B. The reasons for this failure are analyzed and used to propose a
possible alternative, based on the acceleration of particles inside
superbubbles.

27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat