Microscopic calculations of quadrupole moments in Li and B isotopes

Regular Article - Theoretical Physics

Abstract

Quadrupole moments and effective charges are calculated for Li (A = 7, 8, 9, 11) and B (A = 8, 10, 11, 12, 13, 14, 15) isotopes based on the shell model with p and large basis spsdpf-shell model spaces. Excitations out of major shell space are taken into account through a microscopic theory which allows particle-hole excitations from the core and model space orbits to all higher orbits with 6ħω excitations. Effective charges are obtained for the neutron-rich Li and B isotopes which are smaller than the standard values for the stable p- and sd-shell nuclei. Our calculated Q moments agree very well with the experimentally observed trends of the recent experimental data.

References

  1. 1.
    I. Tanihat et al., Phys. Rev. Lett. 55, 2676 (1985).ADSCrossRefGoogle Scholar
  2. 2.
    A. Cichocki et al., Phys. Rev. C 51, 2406 (1995).ADSCrossRefGoogle Scholar
  3. 3.
    V.R. Brown, V.A. Modsen, Phys. Rev. C 11, 1298 (1975).ADSCrossRefGoogle Scholar
  4. 4.
    B.A. Brown et al., Phys. Rep. 101, 313 (1983).ADSCrossRefGoogle Scholar
  5. 5.
    H. Sagawa, B.A. Brown, Nucl. Phys. A 430, 84 (1984).ADSCrossRefGoogle Scholar
  6. 6.
    B.A. Brown et al., Phys. Rev. C 32, 1127 (1985).ADSCrossRefGoogle Scholar
  7. 7.
    Joseph N. Ginocchio, P. Van Isacker, Phys. Rev. C 33, 365 (1986).ADSCrossRefGoogle Scholar
  8. 8.
    M. Carchidi et al., Phys. Rev. C 34, 2280 (1986).ADSCrossRefGoogle Scholar
  9. 9.
    B.A. Brown, B.H. Wildental, Annu. Rev. Nucl. Part. Sci. 38, 29 (1988).ADSCrossRefGoogle Scholar
  10. 10.
    Atsuhi Yokoyama, Kengo Orgawa, Phys. Rev. C 39, 2458 (1989).ADSCrossRefGoogle Scholar
  11. 11.
    R.F. Casten, A. Wolf, Phys. Lett. B 281, 1 (1992).ADSCrossRefGoogle Scholar
  12. 12.
    W.A. Richter et al., Phys. Rev. C 78, 064302 (2008).ADSCrossRefGoogle Scholar
  13. 13.
    R.A. Radhi, E.A. Salman, Nucl. Phys. A 806, 179 (2008).ADSCrossRefGoogle Scholar
  14. 14.
    R.A. Radhi et al., J. Phys. G: Nucl. Part. Phys. 36, 105102 (2009).ADSCrossRefGoogle Scholar
  15. 15.
    P.J. Brussaard, P.W.M. Glaudemans, Shell Model Applications In Nuclear Spectroscopy (North Holand, Amsterdam, 1977).Google Scholar
  16. 16.
    G. Berstch et al., Nucl. Phys. A 284, 399 (1977).ADSCrossRefGoogle Scholar
  17. 17.
    B.A. Brown, MSU-NSCL report number 1289, 2005 version.Google Scholar
  18. 18.
    B.A. Brown, Prog. Part. Nucl. Phys. 45, 517 (2001).ADSCrossRefGoogle Scholar
  19. 19.
    P.G. Blunden, B. Castel, Nucl. Phys. A 455, 742 (1985).ADSCrossRefGoogle Scholar
  20. 20.
    M. Harvey, F.C. Khanna, Nucl. Phys. A 155, 337 (1970).ADSCrossRefMathSciNetGoogle Scholar
  21. 21.
    S. Cohen, D. Kurath, Nucl. Phys. A 73, 1 (1965).CrossRefGoogle Scholar
  22. 22.
    E.K. Warburton, B.A. Brown, Phys. Rev. C 46, 923 (1992).ADSCrossRefGoogle Scholar
  23. 23.
    B. Alex Brown, W.A. Richter, Phys. Rev. C 74, 034315 (2006).ADSCrossRefGoogle Scholar
  24. 24.
    Isao Tanihata et al., Prog. Part. Nucl. Phys. 68, 215 (2013).CrossRefGoogle Scholar
  25. 25.
    H.G. Voelk, D. Fick, Nucl. Phys. A 530, 475 (1991).ADSCrossRefGoogle Scholar
  26. 26.
    C. Forssén et al., Phys. Rev. C 79, 021303(R) (2009).ADSCrossRefGoogle Scholar
  27. 27.
    D. Borremans et al., Phys. Rev. C 72, 044309 (2005).ADSCrossRefGoogle Scholar
  28. 28.
    M.V. Zhukov et al., Phys. Rep. 231, 151 (1993).ADSCrossRefGoogle Scholar
  29. 29.
    J.S. Al-Khalili, J.A. Tostevin, Phys. Rev. Lett. 76, 3903 (1996).ADSCrossRefGoogle Scholar
  30. 30.
    W. Nortershauser et al., Phys. Rev. C 84, 024307 (2011).ADSCrossRefGoogle Scholar
  31. 31.
    T. Suzuki et al., Phys. Rev. C 67, 044302 (2003).ADSCrossRefGoogle Scholar
  32. 32.
    R. Neugart et al., Phys. Rev. Lett. 101, 132502 (2008).ADSCrossRefGoogle Scholar
  33. 33.
    T. Minamisono et al., Phys. Rev. Lett. 69, 2058 (1992).ADSCrossRefGoogle Scholar
  34. 34.
    H. Nakada, T. Otsuka, Phys. Rev. C 49, 886 (1994).ADSCrossRefGoogle Scholar
  35. 35.
    K. Varga et al., Phys. Rev. C 52, 3013 (1995).ADSCrossRefGoogle Scholar
  36. 36.
    R.B. Wiringa et al., Phys. Rev. C 62, 014001 (2000).ADSCrossRefGoogle Scholar
  37. 37.
    T. Sumikama et al., Phys. Rev. C 74, 024327 (2006).ADSCrossRefGoogle Scholar
  38. 38.
    G. Audi et al., Nucl. Phys. A 729, 3 (2003).ADSCrossRefGoogle Scholar
  39. 39.
    I. Tanihata et al., Phys. Lett. B 206, 592 (1988).ADSCrossRefGoogle Scholar
  40. 40.
    D.R. Tilley et al., Nucl. Phys. A 745, 153 (2004).ADSCrossRefGoogle Scholar
  41. 41.
    K. Amos et al., Nucl. Phys. A 836, 59 (2010).ADSCrossRefGoogle Scholar
  42. 42.
    A. Ozawa et al., Nucl. Phys. A 691, 599 (2001).ADSCrossRefGoogle Scholar
  43. 43.
    N.J. Stone, Table of Nuclear Magnetic and Electric Quadrupole Moments (Oxford Physics, Clarendon Laboratory, Oxford, 1995).Google Scholar
  44. 44.
    T. Nagatomo et al., Nucl. Phys. A 746, 509 (2004).ADSCrossRefGoogle Scholar
  45. 45.
    S. Bedoor et al., Phys. Rev. C 88, 011304(R) (2013).ADSCrossRefGoogle Scholar
  46. 46.
    H. Izumi et al., Phys. Lett. B 366, 51 (1996).ADSCrossRefGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of Physics, College of ScienceUniversity of BaghdadBaghdadIraq

Personalised recommendations