The European Physical Journal A

, Volume 31, Issue 2, pp 135–140 | Cite as

Low-lying intrinsic structures in 254Es

  • M. SainathEmail author
  • K. Venkataramaniah
  • P. C. Sood
Regular Article - Nuclear Structure and Reactions


Low-lying two-quasiparticle bandhead energies for the Z = 99 odd-odd nucleus 254Es are evaluated using a simple phenomenological model with the inclusion of the residual p-n interaction. Configurations of the intrinsic levels directly fed in 254Es from the parent 258Md are discussed in the light of this model. Our analysis predicts the occurrence of ten K≤5 bandheads in 254Es with excitation energies E x≤300keV. Structures of these as yet unidentified low-lying intrinsic levels and their expected locations are discussed in the light of available experimental information.


21.10.-k Properties of nuclei; nuclear energy levels 21.10.Hw Spin, parity, and isobaric spin 21.60.-n Nuclear structure models and methods 27.90.+b Properties of specific nuclei listed by mass ranges: 220≤A 


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  1. 1.
    J.K. Tuli, Nuclear Wallet Cards, 7th edition (US National Nuclear Data Centre, Brookhaven, NY, 2005).Google Scholar
  2. 2.
    M. Sainath, K. Venkataramaniah, O.S.K.S. Sastri, R.K. Jain, P.C. Sood, Natl. Acad. Sci. Lett. 29, 65 (2006).Google Scholar
  3. 3.
    M. Sainath, K. Venkataramaniah, P.C. Sood, Proceedings of DAE-BRNS 50th Symposium on Nuclear Physics, Vol. 50 (BARC, Mumbai, 2005) p. 269.Google Scholar
  4. 4.
    K.J. Moody, R.W. Lougheed, J.F. Wild, R.J. Dougan, E.K. Hulet, R.W. Hoff, C.M. Henderson, R.J. Dupzyk, R.L. Hadnm K. Summerer, G.D. O'Kelley, G.R. Bethune, Nucl. Phys. A 563, 21 (1993). CrossRefADSGoogle Scholar
  5. 5.
    Y. Akovali, Nucl. Data Sheets 94, 131 (2001).CrossRefADSGoogle Scholar
  6. 6.
    A. Bhagwat, N.J. Thompson, J.K. Tuli, Nucl. Data Sheets 105, 959 (2005).CrossRefADSGoogle Scholar
  7. 7.
    I. Ahmad, R.R. Chasman, P.R. Fields, Phys. Rev. C 61, 044301 (2000)CrossRefADSGoogle Scholar
  8. 8.
    P.C. Sood, D.M. Headley, R.K. Sheline, R.W. Hoff, At. Data Nucl. Data Tables 58, 167 (1994).CrossRefADSGoogle Scholar
  9. 9.
    A.K. Jain, R.K. Sheline, P.C. Sood, Kiran Jain, Rev. Mod. Phys. 62, 393 (1990).CrossRefADSGoogle Scholar
  10. 10.
    R.B. Firestone, V.S. Shirley, Table of Isotopes, 8th edition (John Wiley, New York, 1996) and its 1999 update edition.Google Scholar
  11. 11.
    C.J. Gallagher, S.A. Moszkowski, Phys. Rev. 111, 1282 (1958).CrossRefADSGoogle Scholar
  12. 12.
    N.I. Pyatov, Izv. Akad. Nauk SSSR, Ser. Fiz. 27, 1436 (1963).Google Scholar
  13. 13.
    N.D. Newby, Phys. Rev. 125, 2063 (1962).CrossRefADSGoogle Scholar
  14. 14.
    G.L. Struble, J. Kern, R.K. Sheline, Phys. Rev. 137, B772 (1965).Google Scholar
  15. 15.
    J.P. Boisson, R. Piepenbring, W. Ogle, Phys. Rep. 26, 99 (1976).CrossRefADSGoogle Scholar
  16. 16.
    D. Elmore, W.P. Alford, Nucl. Phys. A 273, 1 (1976).CrossRefADSGoogle Scholar
  17. 17.
    P.C. Sood, R.N. Singh, Nucl. Phys. A 373, 519 (1982).CrossRefADSGoogle Scholar
  18. 18.
    P.C. Sood, Z. Phys. A 310, (1983)Google Scholar
  19. 19.
    P.C. Sood, R.N. Singh, J. Phys. G 8, 23 (1982)Google Scholar
  20. 20.
    P.C. Sood, M. Sainath, K. Venkataramaniah, Int. J. Mod. Phys. E 9, 309 (2000).ADSGoogle Scholar
  21. 21.
    L. Bennour, J. Libert, M. Meyer, P. QuentinGoogle Scholar
  22. 22.
    R.W. Hoff, A.K. Jain, J. Kvasil, P.C. Sood, R.K. Sheline, in Exotic Nuclear Spectroscopy, edited by W.C. Harris (Plenum, New York, 1990) p. 413.Google Scholar
  23. 23.
    R.K. Sheline, J. Kvasil, P.C. Sood, Phys. Rev. C 44, 2499 (1991).CrossRefADSGoogle Scholar
  24. 24.
    J. Kvasil, R.K. Sheline, V.O. Nesterenko, I. Hrivnacova, D. Nosek, Z. Phys. A 343, 145 (1992).CrossRefGoogle Scholar
  25. 25.
    A.K. Jain, R.K. Sheline, D.M. Headly, P.C. Sood, D.G. Burke, I. Hrivnacova, J. Kvasil, D. Nosek, R.W. Hoff, Rev. Mod. Phys. 70, 843 (1998).CrossRefADSGoogle Scholar
  26. 26.
    D. Nosek, J. Kvasil, R.K. Sheline, P.C. Sood, J. Noskova, Int. J. Mod. Phys. E 3, 967 (1994).CrossRefADSGoogle Scholar
  27. 27.
    Agda Artna-Cohen, Nucl. Data Sheets 88, 155 (1999).CrossRefADSGoogle Scholar

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© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of PhysicsSri Sathya Sai Institute of Higher LearningPrasanthinilayamIndia

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