Advertisement

229mTh(3/2+, 3.5 eV) and a check of the exponentiality of the decay law

  • A. M. Dykhne
  • E. V. Tkalya
Fields, Particles, and Nuclei

Abstract

A new object is proposed for checking the exponentiality of the decay law of an isolated metastable state at long times — the anomalously low-lying level 3/2+ (3.5±0.5 eV) in 229Th. Highly efficient excitation of this level by laser radiation in combination with optimal collection of optical photons emitted in an isomeric transition make it possible to achieve measurement times longer than 50T1/2.

PACS numbers

27.90.+b 23.40.−s, 23.60.+e, 23.50.+z 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    N. S. Krylov and V. A. Fok, Zh. Éksp. Teor. Fiz. 17, 93 (1947).Google Scholar
  2. 2.
    L. A. Khalfin, Zh. Éksp. Teor. Fiz. 33, 1371 (1957) [Sov. Phys. JETP 6, 1053 (1958)].Google Scholar
  3. 3.
    R. G. Winter, Phys. Rev. 126, 1152 (1962).CrossRefADSGoogle Scholar
  4. 4.
    M. I. Shirokov, Yad. Fiz. 21, 674 (1975 [Sov. J. Nucl. Phys. 21, 347 (1975)].Google Scholar
  5. 5.
    I. Prigogine, From Being to Becoming, Freeman, San Francisco, 1980 [Russian translation, Nauka, Moscow, 1985].Google Scholar
  6. 6.
    P. M. Gopych and I. I. Zalyubovksii, Fiz. Élement. Chastitsy Atom. Yadra 19, 785 (1988) [Sov. J. Part. Nucl. 19, 338 (1988)].Google Scholar
  7. 7.
    L. A. Khalfin, Phys. Lett. B 112, 233 (1982).ADSGoogle Scholar
  8. 8.
    K. Grotz and H. V. Klapdor, Phys. Rev. C 30, 2098 (1984).CrossRefADSGoogle Scholar
  9. 9.
    D. Bohm, Phys. Rev. 85, 166 (1952).ADSzbMATHMathSciNetGoogle Scholar
  10. 10.
    L. A. Khalfin, Usp. Fiz. Nauk 166, 688 (1996).Google Scholar
  11. 11.
    R. G. Newton Ann. Phys. 14, 333 (1961).Google Scholar
  12. 12.
    M. V. Terent’ev, Ann. Phys. 74, 1 (1972).Google Scholar
  13. 13.
    L. Fonda, G. C. Ghirardi, and A. Rimini, Rep. Prog. Phys. 41, 587 (1978).CrossRefADSGoogle Scholar
  14. 14.
    E. Rutherford, Stizungsber. Akad. Wiss. Wien, Math.-Naturwiss, Kl., Abt. 2A 120, 303 (1911).Google Scholar
  15. 15.
    D. K. Butt and A. R. Wilson, J. Phys. A 5, 1248 (1972).CrossRefADSGoogle Scholar
  16. 16.
    E. B. Norman, S. B. Gazes, S. G. Grane, and D. A. Bennett, Phys. Rev. Lett. 60, 2246 (1988).CrossRefADSGoogle Scholar
  17. 17.
    P. M. Gopych, I. I. Zalyubovskii, V. V. Sotnikov et al., Yad. Fiz. 39, 257 (1984) [Sov. J. Nucl. Phys. 39, 159 (1984)].Google Scholar
  18. 18.
    R. G. Helmer and C. W. Reich, Phys. Rev. C 49, 1845 (1994).CrossRefADSGoogle Scholar
  19. 19.
    G. M. Irwin and K. H. Kim, Phys. Rev. Lett. 79, 990 (1997).CrossRefADSGoogle Scholar
  20. 20.
    E. V. Tkalya, V. O. Varlamov, V. V. Lomonosov, and S. A. Nikulin, Phys. Scr. 53, 296 (1996).ADSGoogle Scholar
  21. 21.
    A. M. Dykhne and E. V. Tkalya, JETP Lett. 67, 251 (1998).ADSGoogle Scholar
  22. 22.
    V. F. Strizhov and E. V. Tkalya, Zh. Éksp. Teor. Fiz. 99, 697 (1991) [Sov. Phys. JETP 72, 387 (1991)].Google Scholar
  23. 23.
    A. M. Dykhne, N. V. Eremin, and E. V. Tkalya, JETP Lett. 64, 345 (1996).CrossRefADSGoogle Scholar

Copyright information

© MAIK "Nauka/Interperiodica" 1998

Authors and Affiliations

  • A. M. Dykhne
    • 1
    • 2
  • E. V. Tkalya
    • 1
  1. 1.Scientific-Research Institute of Nuclear PhysicsM. V. Lomonosov Moscow State UniversityMoscowRussia
  2. 2.Troitsk Institute of Innovational and Thermonuclear StudiesTroitsk

Personalised recommendations