Sub Coulomb barrier d+208Pb scattering in the time-dependent basis function approach. (1st December 2022)

• Record Type: Journal Article
• Authors: Yin, Peng; Du, Weijie; Zuo, Wei; Zhao, Xingbo; Vary, James P
• Is Part Of: Journal of physics. Volume 49:Number 12(2022)
• Publication Date: 2022-12-01
• Subjects: numbers -- 13.75.Cs -- 21.10.Ky -- 21.60.De -- 24.10.-i -- 25.70.De; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/ac79c3
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: We employ the non-perturbative time-dependent basis function (tBF) approach to study the scattering of the deuteron on 208 Pb below the Coulomb barrier. We obtain the bound and discretized scattering states of the projectile, which form the basis representation of the tBF approach, by diagonalizing a realistic Hamiltonian in a large harmonic oscillator basis. We find that the higher-order inelastic scattering effects are noticeable for sub barrier scatterings with the tBF method. We have successfully reproduced experimental sub Coulomb barrier elastic cross section ratios with the tBF approach by considering only the electric dipole ( E 1) component of the Coulomb interaction between the projectile and the target during scatterings. We find that the correction of the polarization potential to the Rutherford trajectory is dominant in reproducing the data at very low bombarding energies, whereas the role of internal transitions of the deuteron projectile induced by the E 1 interaction during the scattering becomes increasingly significant at higher bombarding energies.