Angular Distributions of Protons for the Two-Proton Decay of Superfluid Nuclei and Diproton Correlations

  • S. G. Kadmensky
  • A. O. Bulychev
  • Yu. V. Ivankov


The approach proposed by A.B. Migdal for describing the virtual singlet diproton state is used to show the effect diproton decay channel has on the width and the angular distribution of emitted protons in the two-proton decay of a parent 45Fe nucleus is negligible. A conclusion is reached on the leading role of the two-stage virtual mechanism of the two-proton decay of the abovementioned nucleus, which corresponds to the sequential emission of two uncorrelated protons and is described in terms of the multiparticle shell nuclear model with allowance for superfluid nucleon–nucleon correlations.



This work was supported by the Russian Foundation for Basic Research, project no. 15-02-03402.


  1. 1.
    Goldansky, V.I., Nucl. Phys, 1960, vol. 19, p. 482.CrossRefGoogle Scholar
  2. 2.
    Pfutzner, M., et al., Eur. Phys. J. A, 2002, vol. 14, p. 279.ADSCrossRefGoogle Scholar
  3. 3.
    Giovanezzo, J., et al., Phys. Rev. Lett., 2002, vol. 89, p. 102501.ADSCrossRefGoogle Scholar
  4. 4.
    Grigorenko, L.V., Phys. Part. Nucl., 2009, vol. 40, no. 5, p. 674.CrossRefGoogle Scholar
  5. 5.
    Kadmensky, S.G. and Ivankov, Yu.V., Phys. At. Nucl., 2014, vol. 77, p. 1075.Google Scholar
  6. 6.
    Kadmensky, S.G. and Ivankov, Yu.V., Phys. At. Nucl., 2014, vol. 77, p. 1605.Google Scholar
  7. 7.
    Kadmensky, S.G. and Ivankov, Yu.V., Bull. Russ. Acad. Sci.: Phys., 2014, vol. 78, p. 1414.Google Scholar
  8. 8.
    Kadmensky, S.G. and Furman, V.I., Al’fa-raspad i rodstvennye yadernye reaktsii (Alpha Decay and Related Nuclear Reactions), Moscow: Energoatomizdat, 1985.Google Scholar
  9. 9.
    Bugrov, V.P., Kadmensky, S.G., Furman, V.I., et al., Sov. J. Nucl. Phys., 1985, vol. 41, p. 717.Google Scholar
  10. 10.
    Bugrov, V.P. and Kadmensky, S.G., Sov. J. Nucl. Phys., 1985, vol. 49, p. 1562.Google Scholar
  11. 11.
    Solov’ev, V.G., Teoriya atomnogo yadra: yadernye modeli (Theory of the Atomic Nucleus: Models), Moscow: Energoizdat, 1981.Google Scholar
  12. 12.
    Migdal, A.B., Teoriya konechnykh fermi-sistem i svoistva atomnykh yader (The Theory of Finite Fermi Systems and the Properties of Atomic Nuclei), Moscow: Nauka, 1983.Google Scholar
  13. 13.
    Landau, L.D. and Smorodinskii, Ya.A., Zh. Eksp. Teor. Fiz., 1944, vol. 14, p. 269.Google Scholar
  14. 14.
    Migdal, A.B., J. Exp. Theor. Phys., 1955, vol. 28, p. 2.Google Scholar
  15. 15.
    Landau, L.D. and Lifshitz, E.M., Kvantovaya mekhanika. Nerelyativistskaya teoriya (Quantum Mechanics: Non-Relativistic Theory), Moscow: Nauka, 1974.Google Scholar
  16. 16.
    Kadmensky, S.G., Ivankov, Yu.V., and Lyubashevsky, D.E., Phys. At. Nucl., 2017, vol. 80, p. 903.CrossRefGoogle Scholar
  17. 17.
    Brown, B.A., Phys. Rev. C, 1991, vol. 43, p. 1517.ADSCrossRefGoogle Scholar
  18. 18.
    Nazarewicz, W., et al., Phys. Rev. C, 1996, vol. 53, p. 740.ADSCrossRefGoogle Scholar
  19. 19.
    Brown, B.A. and Barker, F.C., Phys. Rev. C, 2003, vol. 67, p. 041309.ADSCrossRefGoogle Scholar
  20. 20.
    Janecke, J., Nucl. Phys., 1965, vol. 61, p. 326.CrossRefGoogle Scholar
  21. 21.
    Grigorenko, L.V. and Zhukov, M.V., Phys. Rev. C, 2003, vol. 67, p. 041304.Google Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • S. G. Kadmensky
    • 1
  • A. O. Bulychev
    • 1
  • Yu. V. Ivankov
    • 1
  1. 1.Voronezh State UniversityVoronezhRussia

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