Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclear Reactions of Astrophysical Interest Involving Light Nuclei   An introduction to nucleosynthesis, the creation of the elements in the big
bang, in interstellar matter and in stars is given. The two--step process
$^4$He(2n,$\gamma$)$^6$He and the reverse photodisintegration
$^6$He($\gamma$,2n)$^4$He involving the halo nucleus $^6$He could be of
importance in the $\alpha$--process in type--II supernovae. The reaction rates
for the above processes are calculated using three--body methods and show an
enhancement of more than three orders of magnitude compared to the previous
adopted value. Direct--capture calculations give similar values for the above
reaction rates. Therefore, this method was also used to calculate the reaction
rates of the two--step processes $^6$He(2n,$\gamma$)$^8$He and
$^9$Li(2n,$\gamma$)$^{11}$Li and the reverse photodisintegration of $^8$He and
$^{11}$Li that could be also of importance in the $\alpha$-process.

1
The categories of this paper are: cs
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th