Skip to main content
SpringerLink
Log in

Resonances in helium atoms associated with theN=4 andN=5 He+ thresholds

  • Published:
Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Some doubly excited autoionising states of helium atoms converging on theN=4 andN=5 He+ thresholds are calculated by use of a method of complex-coordinates. States withL≧2 and with parities of (−1)L and (−1)L+1 are calculated by using products of Slater-orbital type wave functions with expansion lengths up to 319 terms. Resonance parameters (both resonance energy and autoinoisation width) are calculated for states with angular momentum up toL=7 forN=4 resonances, andL=8 forN=5 resonances.

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

  1. Ho, Y.K.: Phys. Rep.99, 1 (1983)

    Google Scholar 

  2. Reinhardt, W.P.: Ann. Rev. Phys. Chem.3, 233 (1982); Junker, B.R.: At. Mol. Phys.18, 207 (1982)

    Google Scholar 

  3. Bruch, R., Altick, P.L., Trabert, E., Heckmann, P.H.: J. Phys. B. At. Mol. Phys.17, L655 (1984)

  4. Cederquist, H., Kisielinski, K., Mannervik, S.: J. Phys. B16, L479 (1983)

  5. Herrick, D.R., Sinanoglu, O.: Phys. Rev. A11, 97 (1975); Kellman, M.E., Herrick, D.R.: Phys. Rev. A22, 1536 (1980)

    Google Scholar 

  6. Lin, C.D.: Phys. Rev. Lett.51, 1348 (1983)

    Google Scholar 

  7. Read, F.H.: Aust. J. Phys.35, 475 (1982)

    Google Scholar 

  8. Rau, A.R.P.: J. Phys. B16, L699 (1983)

  9. Dmitieva, I.K., Plindov, G.I.: J. Phys. B21, 3055 (1988)

    Google Scholar 

  10. Burke, P.G., Taylor, A.J.: J. Phys. B2, 44 (1969); Chung, K.T.: Phys. Rev. A6, 1809 (1972); Bhatia, A.K., Temkin, A.: Phys. Rev. A11, 2018 (1975); Lipsky, L., Anania, R., Conneely, M.J.: At. Data Nucl. Data Tables20, 127 (1977); Callaway, J.: Phys. Lett.66A, 201 (1978); Chung, K.T., Davis, B.F.: Phys. Rev. A22, 835 (1980); Wakid, S., Callaway, J.: Phys. Lett.78A, 137 (1980); Oza, D.H.: J. Phys. B18, L321 (1985); Ho, Y.K., Callaway, J.: J. Phys. B18, 3481 (1985)

    Google Scholar 

  11. There are however calculations of doubly excited resonances of H− below the hydrogenN=4 thresholds; Hata, J., Morgan, L.A., McDowell, M.R.C.: J. Phys. B13, 4453 (1980); Callaway, J.: Phys. Rev. A10, 3692 (1988); Pathak, A., Kingston, A.E., Berrington, K.A.: J. Phys. B21, 2939 (1988)

    Google Scholar 

  12. Ho, Y.K.: Phys. Rev. A23, 2137 (1981)

    Google Scholar 

  13. Ho, Y.K.: J. Phys. B12, 387 (1979)

    Google Scholar 

  14. Ho, Y.K.: Phys. Lett.79A, 44 (1980)

    Google Scholar 

  15. Ho, Y.K., Callaway, J.: Phys. Rev. A27, 1887 (1983)

    Google Scholar 

  16. Taylor, H.S.: Adv. Chem. Phys.18, 91 (1970)

    Google Scholar 

  17. Oberoi, R.S.: J. Phys. B5, 1120 (1972)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics and Astronomy, Louisiana State University, 70803-4001, Baton Rouge, LA, USA

    Y. K. Ho

Authors
  1. Y. K. Ho
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ho, Y.K. Resonances in helium atoms associated with theN=4 andN=5 He+ thresholds. Z Phys D - Atoms, Molecules and Clusters 11, 277–281 (1989). https://doi.org/10.1007/BF01438499

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01438499

Pacs

Search

Navigation