Few-Body Systems

, Volume 54, Issue 7–10, pp 1389–1392 | Cite as

Nuclear Structure of 12,14Be Within Deformed Quasi-Particle Random Phase Approximation (DQRPA)

Article

Abstract

We developed a deformed quasi-particle random phase approximation (DQRPA) to describe the Gamow–Teller (GT) transitions on even–even neutron-rich nuclei. To describe deformed nuclei, we exploited the deformed axially symmetric Woods–Saxon potential, the deformed BCS, and the deformed QRPA with realistic two-body interaction calculated by Brueckner G-matrix based on Bonn CD potential. The deformed single particle states are expanded in terms of the spherical harmonic oscillator basis in order to take the realistic G-matrix stored in the spherical basis. We calculated GT strength distributions, B(GT), of two nuclei 12,14Be for many different deformation parameter β 2 values as a function of the excitation energy E ex w.r.t. the ground state of a parent nucleus. Our results for 12Be predict to prefer a prolate shape and B(GT) results of 14Be turn out to be independent of the β 2 values.

Keywords

Deformation Parameter Wigner Function Single Particle State Saxon Potential Harmonic Oscillator Wave Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Hansen P.G., Jensen A.S., Jonson B.: Nuclear halos. Annu. Rev. Nucl. Part. Sci. 45, 591 (1995)ADSCrossRefGoogle Scholar
  2. 2.
    Tanihata I.: Nuclear structure studies from reaction induced by radioactive nuclear beams. Prog. Part. Nucl. Phys. 35, 505 (1995)ADSCrossRefGoogle Scholar
  3. 3.
    Nishimura N., Kajino T., Mathews G.J., Nishimura S., Suzuki T.: Impact of New beta-decay Half-lives on r-process Nucleosynthesis. Phys. Rev. C 85, 048801 (2012)ADSCrossRefGoogle Scholar
  4. 4.
    Labiche M. et al.: Halo Structure of B-14e. Phys. Rev. Lett. 86, 600 (2001)ADSCrossRefGoogle Scholar
  5. 5.
    Audi G., Wapstra A.H.: The 1993 atomic mass evaluation. Nucl. Phys. A565, 66 (1993)ADSGoogle Scholar
  6. 6.
    Suzuki T., Otsuka T.: Gamow-Teller transitions from 11Li and 12Be. Phys. Rev. C 56, 847 (1997)ADSCrossRefGoogle Scholar
  7. 7.
    Cheoun M.K., Bobyk A., Faessler A., Simkovic F., Teneva G.: Neutron proton pairing in light nuclei and two neutrino double beta decay. Nucl. Phys. A561, 74 (1993)ADSGoogle Scholar
  8. 8.
    Hamamoto, I.: Dominance of low-l component in weakly bound deformed single-neutron orbits. Phys. Rev. C 69, 041306(R) (2004)Google Scholar
  9. 9.
    Hamamoto, I.: Nilsson diagrams for light neutron-rich nuclei with weakly-bound neutrons. Phys. Rev. C 76, 054319 (2007)Google Scholar
  10. 10.
    Hwash W.S. et al.: Nuclear Structure of 14Be nucleus. J. Korean Phys. Soc. 61, 27 (2012)ADSCrossRefGoogle Scholar
  11. 11.
    Iwasaki H. et al.: Quadrupole deformation of 12Be studied by proton inelastic scattering. Phys. Lett. B 481, 7 (2000)ADSCrossRefGoogle Scholar
  12. 12.
    Ha, E., Cheoun, M-K.: Gamow-Teller Strengths in 76Ge, 82Se, 90Zr, and 92Zr from the Deformed Quasi-particle RPA (DQRPA). arXiv:1205.4561 [nucl-th] (2012)Google Scholar
  13. 13.
    Ha, E., Kim, K.S., Cheoun, M-K.: High-lying Gamow-Teller excited states in the deformed nuclei of 76Ge and 82Se by the Deformed Quasi-particle RPA (DQRPA). arXiv:1206.2156 [nucl-th] (2012)Google Scholar

Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.Department of PhysicsSoongsil UniversitySeoulKorea

Personalised recommendations