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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

Abstract.

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.

PACS.

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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Copyright information

© 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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