Surface diffuseness anomaly in heavy-ion fusion potentials
Abstract
Recent high precision experimental data for heavy-ion fusion cross sections at energies in the vicinity of the Coulomb barrier systematically show that a strikingly large surface diffuseness parameter for a Woods-Saxon potential is required in order to fit the data. We discuss possible origins for this anomaly, including the effects of dissipation and the sensitivity of fusion cross sections to the choice of inter-nuclear potential. Our study suggests that the frozen density approximation, which is often used in analyses of heavy-ion reactions, may have to be re-examined for heavy-ion fusion.
Cite
@article{arxiv.nucl-th/0110065,
title = {Surface diffuseness anomaly in heavy-ion fusion potentials},
author = {K. Hagino and M. Dasgupta and I. I. Gontchar and D. J. Hinde and C. R. Morton and J. O. Newton},
journal= {arXiv preprint arXiv:nucl-th/0110065},
year = {2017}
}
Comments
12 pages, 6 eps figures, uses psfig.sty and sprocl.sty. A talk given at the 4th Italy-Japan Symposium on Heavy-Ion Physics, Tokyo, Japan, September 2001