Simultaneous chi(2)-analysis of near-barrier fusion and elastic scattering for the proton-halo system B-8+Ni-58 using dynamical Woods-Saxon polarization potentials

作者：Gomez Camacho A; Aguilera E F; Lubian J; Gomes P R S

来源：Journal of Physics G: Nuclear and Particle Physics , 2013, 40(3): 035103.

DOI：10.1088/0954-3899/40/3/035103

Fusion radial potential barrier for the B-8 + Ni-58 system is determined from a simultaneous optical model analysis of elastic scattering angular distributions and fusion data. Besides the nuclear bare potential, dynamical energy-dependent Woods-Saxon polarization potentials, i.e. U-F (volume) and U-DR (surface), are used. U-F is a potential that accounts for polarization effects emerging from couplings to the fusion channel and U-DR for effects due to direct reaction absorption couplings. Each of these potentials is split into real and imaginary potentials. The detailed physical meaning of these two terms of the optical potential is investigated. The interpretation of the results of our calculations confirms that the proton-halo characteristics of B-8 enhance the fusion cross-section.

• 出版日期2013-3