Systematic study of the nuclear potential through high precision back-angle quasi-elastic scattering measurements

L. R. Gasques, M. Evers, D. J. Hinde, M. Dasgupta, P. R.S. Gomes, R. M. Anjos, M. L. Brown, M. D. Rodríguez, R. G. Thomas, Kouichi Hagino

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number024612
JournalPhysical Review C - Nuclear Physics
Volume76
Issue number2
DOIs
Publication statusPublished - 2007 Aug 27

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Systematic study of the nuclear potential through high precision back-angle quasi-elastic scattering measurements'. Together they form a unique fingerprint.

Cite this