TY - JOUR
T1 - Systematic study of the nuclear potential through high precision back-angle quasi-elastic scattering measurements
AU - Gasques, L. R.
AU - Evers, M.
AU - Hinde, D. J.
AU - Dasgupta, M.
AU - Gomes, P. R.S.
AU - Anjos, R. M.
AU - Brown, M. L.
AU - Rodríguez, M. D.
AU - Thomas, R. G.
AU - Hagino, Kouichi
PY - 2007/8/27
Y1 - 2007/8/27
N2 - High precision quasi-elastic scattering excitation functions have been measured at energies well below the Coulomb barrier for the reactions of S32 with Pb208, Au197, W186, and Er170. Single-channel and coupled-channels calculations have been performed to extract the diffuseness parameter of the nuclear potential. For the reactions involving near-spherical targets, both theoretical analyses give the same diffuseness parameter. On the other hand, for deformed systems, couplings are important even at deep sub-barrier energies. In general, the effect of couplings is to reduce the diffuseness parameter value extracted from a single-channel potential. Single-channel fits to quasi-elastic scattering data result in a=0.72-0.82 fm, whereas coupled-channels calculations give diffuseness parameters in the range 0.58-0.75 fm.
AB - High precision quasi-elastic scattering excitation functions have been measured at energies well below the Coulomb barrier for the reactions of S32 with Pb208, Au197, W186, and Er170. Single-channel and coupled-channels calculations have been performed to extract the diffuseness parameter of the nuclear potential. For the reactions involving near-spherical targets, both theoretical analyses give the same diffuseness parameter. On the other hand, for deformed systems, couplings are important even at deep sub-barrier energies. In general, the effect of couplings is to reduce the diffuseness parameter value extracted from a single-channel potential. Single-channel fits to quasi-elastic scattering data result in a=0.72-0.82 fm, whereas coupled-channels calculations give diffuseness parameters in the range 0.58-0.75 fm.
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U2 - 10.1103/PhysRevC.76.024612
DO - 10.1103/PhysRevC.76.024612
M3 - Article
AN - SCOPUS:34548382182
VL - 76
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 2
M1 - 024612
ER -