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First observation of excited states in the 110Mo nucleus

  • W. Urban
  • T. Rzaca-Urban
  • J. L. Durell
  • W. R. Phillips
  • A. G. Smith
  • B. J. Varley
  • I. Ahmad
  • N. Schulz
Letter

Abstract.

The ground-state band in 110Mo has been observed for the first time. The band, comprising six levels, has been populated in the spontaneous fission of 248Cm and studied by means of prompt \(\gamma\)-ray spectroscopy using the EUROGAM2 array. The ratio \(E_{\rm exc}(4^ + )/ E_{\rm exc}(2^ + )\) suggests that the deformation of 110Mo is smaller than that in 108Mo but may stabilize at higher neutron number, where an oblate shape is expected. The new data suggests that the deformation of Sr and Zr isotopes decreases above neutron number N = 64.

Keywords

Spectroscopy Excited State Neutron Number Spontaneous Fission High Neutron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    F.R. Xu, P.M. Walker, R.Wyss, Phys. Rev. C 65, 021303(R) (2002).CrossRefGoogle Scholar
  2. 2.
    P. Moller et al. , At. Data Nucl. Data Tables 59, 185 (1995).CrossRefGoogle Scholar
  3. 3.
    M. Houry et al. , Eur. Phys. J. A 6, 43 (1999).CrossRefGoogle Scholar
  4. 4.
    X.Q. Zhang et al. , Phys. Rev. C 61, 014305 (1999).Google Scholar
  5. 5.
    W. Urban et al. , Z. Phys. A 358, 145 (1997).CrossRefGoogle Scholar
  6. 6.
    M.C.A. Hotchkis et al. , Nucl. Phys. A 530, 111 (1991).CrossRefGoogle Scholar
  7. 7.
    M.A. Jones et al. , Rev. Sci. Instrum. 69, 4120 (1998).CrossRefGoogle Scholar
  8. 8.
    S. Raman et al. , At. Data Nucl. Data Tab. 36, 1 (1987).Google Scholar
  9. 9.
    J.A. Shannon et al. , Phys. Lett. B 336, 136 (1994).CrossRefGoogle Scholar
  10. 10.
    Evaluated Nuclear Structure Data File (2004), www.nndc. bnl.gov.Google Scholar
  11. 11.
    A.G. Smith et al. , Phys. Rev. Lett. 73, 2540 (1994).CrossRefGoogle Scholar
  12. 12.
    W. Urban et al. , Nucl. Phys. A 689, 605 (2001).CrossRefGoogle Scholar
  13. 13.
    G. Lhersonneau et al. , Phys. Rev. C 49, 1379 (1994).CrossRefGoogle Scholar
  14. 14.
    J. Skalski et al. , Nucl. Phys. A 559, 221 (1993).CrossRefGoogle Scholar
  15. 15.
    G. Lhersonneau et al. , Z. Phys. A 337, 143 (1990).Google Scholar
  16. 16.
    H. Mach et al. , Nucl. Phys. A 523, 197 (1991).CrossRefGoogle Scholar
  17. 17.
    W. Urban et al. , Eur. Phys. J. A 16, 11 (2003).Google Scholar
  18. 18.
    N. Buforn et al. , Eur. Phys. J. A 7, 347 (2000).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • W. Urban
    • 1
    • 2
  • T. Rzaca-Urban
    • 1
  • J. L. Durell
    • 3
  • W. R. Phillips
    • 3
  • A. G. Smith
    • 3
  • B. J. Varley
    • 3
  • I. Ahmad
    • 4
  • N. Schulz
    • 5
  1. 1.Faculty of PhysicsWarsaw UniversityWarsawPoland
  2. 2.Laboratoire de Physique Subatomique et de CosmologieIN2P3-CNRS/Université Joseph FourierGrenoble CedexFrance
  3. 3.Schuster Laboratory, Department of Physics and AstronomyUniversity of ManchesterManchesterUK
  4. 4.Argonne National LaboratoryArgonneUSA
  5. 5.Institut de Recherches Subatomiques UMR7500CNRS-IN2P3 et Université Louis PasteurStrasbourgFrance

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