The European Physical Journal A - Hadrons and Nuclei

, Volume 26, Issue 2, pp 233–239

Energy systematics of low-lying Nilsson levels in odd-mass einsteinium isotopes

  • F. P. Heßberger
  • S. Antalic
  • B. Streicher
  • S. Hofmann
  • D. Ackermann
  • B. Kindler
  • I. Kojouharov
  • P. Kuusiniemi
  • M. Leino
  • B. Lommel
  • R. Mann
  • K. Nishio
  • S. Saro
  • B. Sulignano
Original Article

DOI: 10.1140/epja/i2005-10171-6

Cite this article as:
Heßberger, F.P., Antalic, S., Streicher, B. et al. Eur. Phys. J. A (2005) 26: 233. doi:10.1140/epja/i2005-10171-6

Abstract.

The decay of odd-mass mendelevium isotopes ( A = 247-255) has been studied by means of α-γ spectroscopy. Strong evidence for a small α branch in the decay of 253Md was found. γ lines in coincidence with α-decays of 247, 249, 251, 253Md have been observed for the first time. Levels in the einsteinium daughter nuclei were assigned on the basis of α-γ coincidence measurements. An energy systematics of the 7/2-[514] Nilsson level could be established, showing a correlation with the deformation parameter β2 of the corresponding nuclei. The results are compared with theoretical predictions

PACS.

23.60.+e α decay27.90.+b 220 ⩽ A

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • F. P. Heßberger
    • 1
  • S. Antalic
    • 2
  • B. Streicher
    • 2
  • S. Hofmann
    • 1
    • 3
  • D. Ackermann
    • 1
    • 4
  • B. Kindler
    • 1
  • I. Kojouharov
    • 1
  • P. Kuusiniemi
    • 1
    • 5
  • M. Leino
    • 5
  • B. Lommel
    • 1
  • R. Mann
    • 1
  • K. Nishio
    • 6
    • 1
  • S. Saro
    • 2
  • B. Sulignano
    • 1
    • 4
  1. 1.Gesellschaft für Schwerionenforschung mbHDarmstadtGermany
  2. 2.Department of Nuclear PhysicsComenius UniversityBratislavaSlovakia
  3. 3.Institut für KernphysikJohann Wolfgang Goethe-UniversitätFrankfurt am MainGermany
  4. 4.Institut für PhysikJohannes Gutenberg-UniversitätMainzGermany
  5. 5.Department of PhysicsUniversity of JyväskyläJyväskyläFinland
  6. 6.Japan Atomic Energy Research Institute (JAERI)Tokai, IbarakiJapan