Nuclear and Particle Physics Colloquium 138

(核与粒子物理学术报告会138)

Place: Shahe Campus C826

Time：2024年11月07日 10:00

Title: Breakup effects on fusion reaction methods and quantum-mechanical methods for the CF and ICF calculation

Speaker: Jesus Lubian Rios ，the Instituto de Física da Universidade Federal Fluminense in Niterói, Rio de Janeiro

Abstract:

This report discusses the effect of weakly bound projectiles' breakup (BU) channels on complete and total fusion. For that, Lubain reports his fusion method based on the Wong formula, which allows for comparing reduced experimental data to the universal fusion function to find the effect of the BU channel on fusion. He reports a recent improvement to the Wong formula to upgrade the reduction method and introduces the classic line benchmark for energies above the Coulomb barrier. The new method is also used to study the effect of CN probability on the fusion cross section and to study the hindrance of the fusion cross section of super-heavy nuclei. A new theoretical method for the calculation of complete (CF) and incomplete fusion (ICF) recently proposed by him will be presented. This method is based on the continuum discretized coupled channel method plus a classical statistic to derive the corresponding probabilities. The method will be used to derive the CF and ICF of the reactions induced by 6,7Li on heavy targets. The capability to describe the experimental data for the reactions induced by neutron halo projectiles will also shown. Finally, we will also show that from the inclusive alpha emission cross section from 6Li + 90Zr at near barrier energies, the deuteron-ICF can be derived, and the theoretical prediction agrees very well with this indirect experimental quantity.

About speaker:

Jesús Lubián is a theoretical nuclear physicist who graduated in Physics at Moscow State University M.V. Lomonosov (1988) and Ph.D. in Physics at Centro de Estudos Aplicados al Desarrollo Nuclear, Havana Cuba (1995). He has experience in Nuclear Physics, working in the theory of  Nuclear Reactions between stable and unstable nuclei at low and intermediate energies. He is now an associate professor at the Instituto de Física da Universidade Federal Fluminense in Niterói, Rio de Janeiro