Analysis of Elastic Scattering of 8He+208Pb System at around the Coulomb Barrier Energies

NUBA Conference Series -1: Nuclear Physics and Astrophysics

物理学;天文学

Direkci, M.^1,2 ; Kucuk, Y.^2,3 ; Boztosun, I.^2,3

Department of Physics, Bozok University, Yozgat

66100, Turkey^1

Department of Physics, Akdeniz University, Antalya

07058, Turkey^2

Nuclear Sciences and Application Center, Akdeniz University, Antalya

07058, Turkey^3

关键词: Absorption mechanisms;    Comparative studies;    Coulomb barrier;    Density distributions;    Nuclear potentials;    Optical modeling;    Optical potential;    Real and imaginary;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/590/1/012058/pdf
DOI  :  10.1088/1742-6596/590/1/012058

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The elastic scattering angular distribution of8He+208Pb system is investigated at E lab = 22.0 MeV within the framework of Optical Model by using phenomenological and microscopic potentials. For the phenomenological Optical Model calculations, both real and imaginary parts of the complex nuclear potential have been chosen to have the Wood-Saxon shape. In the microscopic Optical Model calculations, we have used double folding procedure to calculate the real part of optical potential for different kinds of density distributions of8He. A comparative study of this system has been conducted for the fist time by using phenomenological and microscopic potentials. It is observed that large imaginary radius value due to the existence of long-range absorption mechanism acting at large distances provides a very good agreement between theoretical results and experimental data with small χ2/N values.