Advertisement

The European Physical Journal A

, Volume 32, Issue 3, pp 261–266 | Cite as

Search for superheavy hydrogen isotopes 6H and 7H in stopped π-absorption reactions

  • Yu. B. Gurov
  • B. A. Chernyshev
  • S. V. Isakov
  • V. S. Karpukhin
  • S. V. Lapushkin
  • I. V. Laukhin
  • V. A. Pechkurov
  • N. O. Poroshin
  • V. G. Sandukovsky
Regular Article - Nuclear Structure and Reactions

Abstract.

Experimental search for superheavy hydrogen isotopes 6H and 7H was performed in the stopped pion absorption on 9Be and 11B nuclei. The structures in the missing-mass spectra were observed in the reaction channels 9Be(π-, pd )X and 11B(π-, p4He)X . Four states of 6H were proposed. Evidences for 7H formation were obtained in the reaction channels 9Be(π-, pp)X and 11B(π-, p3He)X .

PACS.

27.20.+n 6 ⩽ A ⩽ 19  25.80.Ls Pion inclusive scattering and absorption 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Yu.B. Gurov, Eur. Phys. J. A 24, 231 (2005).CrossRefADSGoogle Scholar
  2. 2.
    A.A. Korsheninnikov, Phys. Rev. Lett. 87, 092501 (2001).CrossRefADSGoogle Scholar
  3. 3.
    M. Meister, Nucl. Phys. A 723, 13 (2003).ADSGoogle Scholar
  4. 4.
    M.S. Golovkov, Phys. Lett. B 566, 70 (2003).CrossRefADSGoogle Scholar
  5. 5.
    S.I. Sidorchuk, Phys. Lett. B 594, 54 (2004).CrossRefADSGoogle Scholar
  6. 6.
    M.S. Golovkov, Phys. Rev. Lett. 93, 262501 (2004).CrossRefADSGoogle Scholar
  7. 7.
    M.S. Golovkov, Phys. Rev. C 72, 064612 (2005).CrossRefADSGoogle Scholar
  8. 8.
    D.R. Tilley, Nucl. Phys. A 708, 3 (2002).CrossRefADSGoogle Scholar
  9. 9.
    D.V. Aleksandrov, Sov. J. Nucl. Phys. 39, 323 (1984).Google Scholar
  10. 10.
    A.V. Belozyorov, Nucl. Phys. A 460, 352 (1986).CrossRefADSGoogle Scholar
  11. 11.
    B. Parker, K.K. Seth, R. Soundranayagam, Phys. Lett. B 251, 483 (1990).CrossRefADSGoogle Scholar
  12. 12.
    M.G. Gornov, Nucl. Phys. A 531, 613 (1991).CrossRefADSGoogle Scholar
  13. 13.
    A.I. Amelin, JETP Lett. 51, 688 (1990).ADSGoogle Scholar
  14. 14.
    B. Jonson, Phys. Rep. 389, 1 (2004).CrossRefADSGoogle Scholar
  15. 15.
    B.A. Brown, W.A. Richter, Phys. Rev. C 72, 057301 (2005).CrossRefADSGoogle Scholar
  16. 16.
    R.K. Gupta, J. Phys. G: Nucl. Part. Phys. 32, 565 (2006).CrossRefADSGoogle Scholar
  17. 17.
    A.A. Korsheninnikov, Phys. Rev. Lett. 90, 082501 (2003).CrossRefADSGoogle Scholar
  18. 18.
    M.G. Gornov, Nucl. Instrum. Methods Phys. Res. A 446, 461 (2000).CrossRefADSGoogle Scholar
  19. 19.
    H. Weyer, Phys. Rep. 195, 295 (1990).CrossRefADSGoogle Scholar
  20. 20.
    Yu.B. Gurov, JETP Lett. 78, 183 (2003).CrossRefADSGoogle Scholar
  21. 21.
    A.M. Gorbatov, Sov. J. Nucl. Phys. 50, 1551 (1989).Google Scholar
  22. 22.
    N.A.F.M. Poppelier, L.D. Wood, P.W.M. Glaudemans, Phys. Lett. B 157, 120 (1985).CrossRefADSGoogle Scholar
  23. 23.
    R. Franke, Nucl. Phys. A 433, 351 (1985).CrossRefADSGoogle Scholar
  24. 24.
    V.I. Goldanskii, Nucl. Phys. 39, 482 (1960).Google Scholar
  25. 25.
    T. Yamagata, Phys. Rev. C 69, 044313 (2004).CrossRefADSGoogle Scholar
  26. 26.
    B. Bassaleck, Phys. Rev. C 19, 1893 (1979).CrossRefADSGoogle Scholar
  27. 27.
    B. Bassaleck, Phys. Rev. C 16, 1526 (1977).CrossRefADSGoogle Scholar
  28. 28.
    U. Sennhauser, Nucl. Phys. A 386, 429 (1982).CrossRefADSGoogle Scholar
  29. 29.
    M.G. Gornov, Nucl. Phys. A 531, 613 (1991).CrossRefADSGoogle Scholar
  30. 30.
    U. Sennhauser, Nucl. Phys. A 386, 447 (1982).CrossRefADSGoogle Scholar
  31. 31.
    M.G. Gornov, Bull. Russ. Acad. Sci., Phys. 62, 1781 (1998).Google Scholar
  32. 32.
    Yu.B. Gurov, Phys. At. Nucl. 69, 1448 (2006).CrossRefGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  • Yu. B. Gurov
    • 1
  • B. A. Chernyshev
    • 1
  • S. V. Isakov
    • 1
  • V. S. Karpukhin
    • 1
  • S. V. Lapushkin
    • 1
  • I. V. Laukhin
    • 1
  • V. A. Pechkurov
    • 1
  • N. O. Poroshin
    • 1
  • V. G. Sandukovsky
    • 2
  1. 1.Moscow Engineering Physics Institute (State University)MoscowRussia
  2. 2.Joint Institute for Nuclear ResearchDubnaRussia

Personalised recommendations