Spatial
barrier distributions for ^{8}B+^{58}Ni from a
simultaneous optical model analysis of elastic scattering and
fusion data,
A. Gomez Camacho, Instituto
Nacional de Investigaciones Nucleares, Mexico − Fusion and
total reaction
spatial barrier distributions for ^{8}B+^{58}Ni
at several bombarding
energies around the Coulomb barrier, are determined from a
simultaneous optical
model analysis of elastic scattering and fusion data. Besides the nuclear bare
potential VN, energy
dependent optical Woods-Saxon polarization potentials, UF (volume)
and UDR (surface)
are assumed. That is,
UF is a potential
that accounts for polarization effects emerging from couplings to
the fusion
channel and UDR for effects due to direct reaction absorption
couplings. Each of
these potentials UF and UDR are in
turn, split into real and imaginary potentials VF, WF and VDR and
WDR respectively,
which are related via the dispersion relation. The potentials parameters
of all of these
potentials are determined from a simultaneous fit to elastic
scattering and
fusion cross section data. In
this work,
the position and height of the fusion and total reaction potential
barriers are
calculated from the sum of the Coulomb (V_{coul}), bare
(VN) and the determined
energy dependent real polarization potentials (VF and VDR). It is found that the
position and height of the
barriers agree with those obtained from a Wong fitting for the
fusion and total
reaction data.