Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Subbarrier fusion of carbon isotopes: from resonance structure to fusion
  oscillations   At energies below the Coulomb barrier, the fusion excitation function for the
$^{12}$C+$^{12}$C system shows prominent fine structures, whereas that for the
$^{12}$C+$^{13}$C system behaves more smoothly as a function of energy. We
demonstrate that these different behaviors can be simultaneously reproduced
using an optical potential in which the strength of the imaginary part is
proportional to the level density of each compound nucleus. We also discuss the
oscillatory behavior of fusion excitation function for these systems observed
at energies above the Coulomb barrier from a view point of quantum mechanical
systems with identical particles.

33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex