Imaginary part of microscopic optical potential at negative energies
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Keywords

microscopic optical potential
Imaginary
negative energies Thế quang học vi mô
Năng lượng âm
Phần ảo

How to Cite

1.
Do Quang T, Nguyen VP, Nguyen MH, Nguyen Thi HN, Tran Duy QN, Tran Viet NH, Vo LU. Imaginary part of microscopic optical potential at negative energies. hueuni-jns [Internet]. 2023Jun.30 [cited 2024Feb.26];132(1B):133-7. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6871

Abstract

In this paper, we calculate the diagonal contributions W(R, s = 0) of the imaginary part of the microsopic optical potential at negatives energies, where W(R, s) =
Σlj(2j+1)/4π Im∆Σlj(r, r′, ω), with R = 1/2.(r + r′) corresponding to the radius and shape of
Im∆Σ, and s = r - r′. To do it, the microscopic optical potential has been calculated
by using the nuclear structure approach which is based on the Green function method. The coupling between the particle and collective phonon has been performed to calculate the dynamic part of the optical potential. It has been found that the imaginary part at negative energies is very small as expected. The calculated W(R, 0) is maximum on the surface and deacreases to zero in the interior.

https://doi.org/10.26459/hueunijns.v132i1B.6871
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References

  1. Bernard V, Van Giai N. Microscopic optical potential for 208Pb in the nuclear structure approach. Nuclear Physics A. 1979;327(2):397-418.
  2. Mizuyama K, Ogata K. Self-consistent microscopic description of neutron scattering by 16O based on the continuum particle-vibration coupling method. Physical Review C. 2012;86(4):041603.
  3. Mizuyama K, Ogata K. Low-lying excited states of 24O investigated by a self-consistent microscopic description of proton inelastic scattering. Physical Review C. 2014;89(3):034620.
  4. Blanchon G, Dupuis M, Arellano HF, Mau NV. Microscopic positive-energy potential based on the Gogny interaction. Physical Review C. 2015;91(1):014612.
  5. Hao TN, Loc BM, Phuc NH. Low-energy nucleon-nucleus scattering within the energy density functional approach. Physical Review C. 2015;92(1):014605.
  6. Blanchon G, Dupuis M, Bernard RN, Arellano HF. Asymmetry dependence of Gogny-based optical potential. The European Physical Journal A. 2017;3:1-2.
  7. Blanchon G, Dupuis M, Arellano HF. Prospective study on microscopic potential with Gogny interaction. The European Physical Journal A. 2015;51:1-3.
  8. Nhan Hao TV, Nhu Le N, Koh MH, Quang Hung N, Ngoc Duy N, Pham VN, et al. Microscopic optical potential obtained from energy-density-functional approach for neutron–nucleus elastic scattering. International Journal of Modern Physics E. 2018;27(06):1850052.
  9. Bell JS, Squires EJ. A formal optical model. Physical Review Letters. 1959;3(2):96.
  10. Tung NH, Le N, Pham VN, Hao TN. Microscopic optical model analysis of proton-nucleus elastic scattering at low energy. Acta Physica Polonica B. 2020;51(10).
  11. Tung NH, Tam DQ, Pham VN, Truong CL, Hao TN. Effects of velocity-dependent and spin-orbit terms of the Skyrme interaction on neutron elastic scattering observables. Physical Review C. 2020;102(3):034608.
  12. Chabanat E, Bonche P, Haensel P, Meyer J, Schaeffer R. A Skyrme parametrization from subnuclear to neutron star densities Part II. Nuclei far from stabilities. Nuclear Physics A. 1998;635(1-2):231-56.
  13. Colò G, Sagawa H, Bortignon PF. Effect of particle-vibration coupling on single-particle states: A consistent study within the Skyrme framework. Physical Review C. 2010;82(6):064307.
  14. Cao LG, Colò G, Sagawa H, Bortignon PF. Properties of single-particle states in a fully self-consistent particle-vibration coupling approach. Physical Review C. 2014;89(4):044314.
  15. Koh MH, Duy Duc D, Nhan Hao TV, Thuy Long H, Quentin P, Bonneau L. Band-head spectra of low-energy single-particle excitations in some well-deformed, odd-mass heavy nuclei within a microscopic approach. The European Physical Journal A. 2016;52:1-4.
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