Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sub-barrier fusion of drip-line nuclei   We discuss the role of break-up process of a loosely-bound projectile in
subbarrier fusion reactions. Coupled-channels calculations are carried out for
$^{11}$Be + $^{208}$Pb and $^{4,6}$He + $^{238}$U reactions by discretizing in
energy the particle continuum states. Our calculations show that the coupling
to the break-up channel has two effects, namely the loss of flux and the
dynamical modulation of fusion potential. Their net effects differ depending on
the energy region. At energies above the Coulomb barrier, the former effect
dominates over the latter and cross sections for complete fusion are hindered
compared with the no coupling case. On the other hand, at below the barrier,
the latter effect is much larger than the former and complete fusion cross
sections are enhanced consequently.

2
The categories of this paper are: math
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess