Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Systematic study of (g,n) reaction rates for Z>=78 isotopes   The (g,n) reaction rates of the isotopes 196,198,204-Hg and 204-Pb have been
determined using the photoactivation technique in an energy region relevant for
p process nucleosynthesis. The systematic study of the ground-state (g,n)
reaction rates on even-even nuclei in the mass region Z>=78 is complemented
with these experiments. The data are compared to rates predicted in the
framework of two statistical model approaches.

2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex