Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective Neutrino Oscillations and Nucleosynthesis   The emergent phenomenon of collective neutrino oscillations arises from
neutrino-neutrino interactions in environments with very large number of
neutrinos. Since such environments are likely sites of the heavy-element
synthesis, understanding all aspects of collective neutrino oscillations seems
to be necessary for a complete accounting of nucleosynthesis. I briefly
summarize some of the salient features along with recent work on the properties
and astrophysical applications of the collective neutrino oscillations.

32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio