Skip to main content
SpringerLink
Log in

Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86

  • Original Article
  • Published:
The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract.

Decay properties of neutron-deficient exotic nuclei close to A=80 have been investigated at the IGISOL facility. The studied nuclei, 81Y, 81Sr, 81mKr, 85Nb, 85Zr, 86Mo and 86Nb, were produced by a 32S beam from the Jyväskylä isochronous cyclotron on 54Fe and natNi targets. The internal conversion coefficient for a 190.5 keV isomeric transition in 81mKr has been measured and the internal transition rate has been determined. The internal transition rate has been used to estimate a neutrino capture rate on 81Br, which yields a log ft of 5.13±0.09 for the reaction 81Br( ν, e -)81mKr. A new isomer with a half-life of 3.3±0.9 s has been observed in 85Nb. The existence of an earlier reported isomer with a half-life of 56 s in 86Nb has not been confirmed.

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. H. Schatz et al., Phys. Rep. 294, 167 (1998).

    Google Scholar 

  2. H. Schatz et al., Nucl. Phys. A 688, 150c (2001).

    Google Scholar 

  3. Yu.N. Novikov et al., Eur. Phys. J. A 11, 257 (2001).

    Google Scholar 

  4. R. Davis et al., Phys. Rev. Lett. 20, 1205 (1968).

    Google Scholar 

  5. R.D. Scott, Nature 264, 729 (1976).

    Google Scholar 

  6. J.N. Bahcall et al., Phys. Rev. Lett. 90, 131301 (2003).

    Google Scholar 

  7. D. Krofcheck et al., Phys. Lett. B 189, 299 (1987).

    Google Scholar 

  8. C.M. Baglin, Nucl. Data Sheets 79, 447 (1996).

    Google Scholar 

  9. M.M. Lowry et al., Phys. Rev. C 35, 1950 (1987).

    Google Scholar 

  10. C.N. Davids et al., Phys. Rev. C 35, 1114 (1987).

    Google Scholar 

  11. J. Äystö, Nucl. Phys. A 693, 477 (2001).

    Google Scholar 

  12. J.M. Parmonen et al., Nucl. Instrum. Methods A 306, 504 (1991).

    Google Scholar 

  13. W.O. Doggett, Lawrence Radiation Laboratory Report No. UCRL-3438, 1956, unpublished.

  14. P.G. Hansen et al., Phys. Lett. B 28, 415 (1969).

    Google Scholar 

  15. S. Väisälä et al., Phys. Fenn. 10, 133 (1975).

    Google Scholar 

  16. J. Lipták et al., Nucl. Phys. A 286, 263 (1977).

    Google Scholar 

  17. K. Toyoshima, Nucl. Phys. A 323, 61 (1979).

    Google Scholar 

  18. I.M. Band et al., At. Data Nucl. Data Tables 81, 1 (2002).

    Google Scholar 

  19. H. Sievers, Nucl. Data Sheets 62, 271 (1991).

    Google Scholar 

  20. T. Kuroyanagi et al., Nucl. Phys. A 484, 264 (1988).

    Google Scholar 

  21. G. Audi et al., Nucl. Phys. A 729, 337 (2003).

    Google Scholar 

  22. B. Singh, Nucl. Data Sheets 94, 1 (2001).

    Google Scholar 

  23. T. Shizuma et al., Z. Phys. A 348, 25 (1994).

    Google Scholar 

  24. R.G. Helmer, Nucl. Data Sheets 95, 543 (2002).

    Google Scholar 

  25. B. Singh, Nucl. Data Sheets 85, 1 (1998).

    Google Scholar 

  26. C.M. Baglin, Nucl. Data Sheets 86, 1 (1999).

    Google Scholar 

  27. C.M. Baglin, Nucl. Data Sheets 80, 1 (1997).

    Google Scholar 

  28. T.W. Burrows, Nucl. Data Sheets 68, 635 (1993).

    Google Scholar 

  29. A. Artna-Cohen, Nucl. Data Sheets 70, 85 (1993).

    Google Scholar 

  30. L.K. Peker, Nucl. Data Sheets 73, 1 (1994).

    Google Scholar 

  31. B.S. Dzhelepov et al., Beta Processes, Functions for the Analysis of Beta Spectra and Electron Capture (Nauka, Leningrad, 1972).

  32. A. Faessler et al., Z. Phys. A 238, 352 (1970).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40014, Finland

    A. Kankainen, W. Huang, J. Huikari, A. Jokinen, A. Nieminen, H. Penttilä, S. Rinta-Antila & J. Äystö

  2. St. Petersburg State University, 198904, St. Petersburg, Russia

    G. K. Vorobjev, Yu. N. Novikov & Yu. P. Suslov

  3. Petersburg Nuclear Physics Institute, 188300, Gatchina, Russia

    G. K. Vorobjev, S. A. Eliseev, Yu. N. Novikov, A. V. Popov & D. M. Seliverstov

  4. GSI, Postfach 110552, D-64291, Darmstadt, Germany

    S. A. Eliseev

  5. Michigan State University, 48824, East Lansing, MI, USA

    H. Schatz

Authors
  1. A. Kankainen
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. K. Vorobjev
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S. A. Eliseev
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. W. Huang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. J. Huikari
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. A. Jokinen
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. A. Nieminen
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Yu. N. Novikov
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. H. Penttilä
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. A. V. Popov
    View author publications

    You can also search for this author in PubMed Google Scholar

  11. S. Rinta-Antila
    View author publications

    You can also search for this author in PubMed Google Scholar

  12. H. Schatz
    View author publications

    You can also search for this author in PubMed Google Scholar

  13. D. M. Seliverstov
    View author publications

    You can also search for this author in PubMed Google Scholar

  14. Yu. P. Suslov
    View author publications

    You can also search for this author in PubMed Google Scholar

  15. J. Äystö
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. Kankainen.

Additional information

D. Guerreau

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kankainen, A., Vorobjev, G.K., Eliseev, S.A. et al. Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86. Eur. Phys. J. A 25, 355–363 (2005). https://doi.org/10.1140/epja/i2005-10141-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1140/epja/i2005-10141-0

PACS.

Search

Navigation