Skip to main content
SpringerLink
Log in

Isovector deformation and its link to the neutron shell closure

  • Published:
The European Physical Journal Special Topics Aims and scope Submit manuscript

Abstract.

DWBA analysis of the inelastic 30-40S(p,p') and 18-22O(p,p') scattering data measured in the inverse kinematics has been performed to determine the isoscalar (δ0) and isovector (δ1) deformation lengths of the 2+1 excitations in the Sulfur and Oxygen isotopes using a compact folding approach. A systematic N-dependence of δ0 and δ1 has been established which shows a link between δ1 and the neutron-shell closure. Strong isovector deformations were found in several cases, e.g., the 2+1 state in 20O where δ1 is nearly three times larger than δ0. These results confirm the relation δ1>δ0 anticipated from the core polarization by the valence neutrons in the open-shell (neutron rich) nuclei. The effect of neutron shell closure at N=14 or 16 has been discussed based on the folding model analysis of the inelastic 22O+p scattering data at 46.6 MeV/u measured recently at GANIL.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • A.M. Bernstein, V.R. Brown, V.A. Madsen, Nucl. Part. Phys. 11, 203 (1983)

    Google Scholar 

  • A.M. Lane, Phys. Rev. Lett. 8, 171 (1962)

    Google Scholar 

  • R.W. Finlay, J. Rapaport, V.R. Brown, V.A. Madsen, J.R. Comfort, Phys. Lett. B 84, 169 (1979)

    Google Scholar 

  • P. Grabmayr, J. Rapaport, R.W. Finlay, Nucl. Phys. A 350, 167 (1980)

    Google Scholar 

  • D.T. Khoa, Phys. Rev. C 68, 011601(R) (2003)

  • A. Bohr, B.R. Mottelson, Nuclear Structure, Vol. 2 (Benjamin, New York, 1975)

  • D.T. Khoa, E. Khan, G. Colò, N. Van Giai, Nucl. Phys. A 706, 61 (2002)

    Google Scholar 

  • E. Khan et al., Nucl. Phys. A 694, 103 (2001)

  • R. Alarcon, J. Rapaport, R.T. Kovzes, W.H. Moore, B.A. Brown, Phys. Rev. C 31, 697 (1985)

    Google Scholar 

  • A. Hogenbirk, H.P. Blok, M.G.E. Brand, A.G.M. van Hees, J.F.A. van Hienen, F.A. Jansen, Nucl. Phys. A 516, 205 (1990)

    Google Scholar 

  • J.H. Kelley et al., Phys. Rev. C 56, R1206 (1997)

  • F. Maréchal et al., Phys. Rev. C 60, 034615 (1999)

  • E. Khan et al., Phys. Lett. B 490, 45 (2000)

  • E. Becheva et al., Phys. Rev. Lett. 96, 012501 (2006)

  • D.T. Khoa, G.R. Satchler, W. von Oertzen, Phys. Rev. C 56, 954 (1997)

    Google Scholar 

  • M. Grasso, N. Sandulescu, N. Van Giai, R.J. Liotta, Phys. Rev. C 64, 064321 (2001)

    Google Scholar 

  • R.L. Varner, W.J. Thompson, T.L. McAbee, E.J. Ludwig, T.B. Clegg, Phys. Rep. 201, 57 (1991)

    Google Scholar 

  • S. Raman, C.W. Nestor Jr., P. Tikkanen, At. Data Nucl. Data Tables 78, 1 (2001)

    Google Scholar 

  • E. Khan, N. Sandulescu, M. Grasso, N. Van Giai, Phys. Rev. C 66, 024309 (2002)

    Google Scholar 

  • A. Obertelli, S. Peru, J.-P. Delaroche, A. Gillibert, M. Girod, H. Goutte, Phys. Rev. C 71, 024304 (2005)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute for Nuclear Science & Technique, P.O. Box 5, VAEC, Hanoi, Vietnam

    D. T. Khoa

Authors
  1. D. T. Khoa
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to D. T. Khoa.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Khoa, D. Isovector deformation and its link to the neutron shell closure. Eur. Phys. J. Spec. Top. 150, 31–34 (2007). https://doi.org/10.1140/epjst/e2007-00258-8

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1140/epjst/e2007-00258-8

PACS.

Search

Navigation