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Sub Coulomb barrier d+ 208Pb scattering in the time-dependent basis function approach

Journal Article · · Journal of Physics. G, Nuclear and Particle Physics
 [1];  [2];  [3];  [3];  [2]
  1. Iowa State University, Ames, IA (United States); Chinese Academy of Sciences, Lanzhou (China); Iowa State University
  2. Iowa State University, Ames, IA (United States)
  3. Chinese Academy of Sciences, Lanzhou (China); University of Chinese Academy of Sciences, Beijing (China)
+ Show Author Affiliations
We employ the non-perturbative time-dependent basis function (tBF) approach to study the scattering of the deuteron on 208Pb 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 (E1) component of the Coulomb interaction between the projectile and the target during scatterings. Here, 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 E1 interaction during the scattering becomes increasingly significant at higher bombarding energies.
Research Organization:
Iowa State University, Ames, IA (United States)
Sponsoring Organization:
Chinese Academy of Sciences; National Natural Science Foundation of China; Natural Science Foundation of Gansu Province, China; USDOE Office of Science (SC)
Grant/Contract Number:
FG02-87ER40371; SC0009971; SC0018223
OSTI ID:
2278937
Journal Information:
Journal of Physics. G, Nuclear and Particle Physics, Journal Name: Journal of Physics. G, Nuclear and Particle Physics Journal Issue: 12 Vol. 49; ISSN 0954-3899
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (7)

FIG. 1(p. 2)figure FIG. 1
FIG. 2(p. 6)figure FIG. 2
FIG. 3(p. 7)figure FIG. 3
FIG. 4(p. 8)figure FIG. 4
TABLE I(p. 9)table TABLE I
FIG. 5(p. 10)figure FIG. 5
FIG. 6(p. 11)figure FIG. 6

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Nuclear Scattering
ab initio theory
elastic cross sections
time-dependent scattering