Mapping σp into σfus for the 8B+58Ni system

36th Symposium on Nuclear Physics

Amador-Valenzuela, P.^1,2 ; Aguilera, E.F.^1 ; Martinez-Quiroz, E.^1 ; Lizcano, D.^1 ; Belyaeva, T.L.^2 ; Kolata, J.J.^3

Departamento de Aceleradores, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Código Postal 11801, México, DF, Mexico^1

Universidad Autónoma Del Estado de México, Código Postal 50000, Toluca, Mexico^2

Physics Department, University of Notre Dame, Notre Dame, IN 46556-5670, United States^3

关键词: Coulomb barrier;    Excitation function;    Input parameter;    Integrated cross sections;    Proton halos;    Transmission coefficients;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/492/1/012003/pdf
DOI  :  10.1088/1742-6596/492/1/012003

来源: IOP

【 摘 要 】

A fusion excitation function for the8B+58Ni proton-halo system at near Coulomb barrier energies was recently published (Aguilera E F et al. 2011 Phys. Rev. Lett. 107 092701). The respective fusion cross sections (σfus) were determined from the integrated cross sections for the evaporated protons (σp), by using proton multiplicities (Mp) calculated with the code PACE. In this code, the transmission coefficients Tlare calculated only for the compound-nucleus values of A and Z and an extrapolation is then made for subsequent decays. In the present work, the reliability of the whole procedure is further investigated both, by studying the effect of variations in the input parameters to PACE and by computing the Mpvalues with the alternate code LILITA. An explicit calculation of all necessary transmission coefficients is made in the latter code.