New lifetime measurements in the stable semimagic Sn isotopes using the Doppler-shift attenuation technique

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Abstract

Precise measurements of lifetimes in the picosecond range of excited states in the stable even-A Sn isotopes 112,114,116,122Sn have been performed using the Doppler shift attenuation technique. For the first excited 2+ states in 112Sn, 114Sn and 116Sn the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously adopted values. They indicate a shallow minimum at N = 66 in contrast to the maximum at mid-shell predicted by modern shell model calculations.

Detaljer

Författare
  • A. Jungclaus
  • J. Walker
  • J. Leske
  • K. H. Speidel
  • A. E. Stuchbery
  • M. East
  • P. Boutachkov
  • P. Doornenbal
  • J. L. Egido
  • A. Ekström
  • J. Gerl
  • R. Gernhäuser
  • N. Goel
  • M. Górska
  • I. Kojouharov
  • P. Maier-Komor
  • V. Modamio
  • F. Naqvi
  • N. Pietralla
  • S. Pietri
  • W. Prokopowicz
  • H. Schaffner
  • R. Schwengner
  • H. J. Wollersheim
Enheter & grupper
Externa organisationer
  • CSIC Instituto de Estructura de la Materia (IEM)
  • Autonomous University of Madrid
  • Technical University of Darmstadt
  • University of Bonn
  • Australian National University
  • GSI Helmholtz Centre for Heavy Ion Research
  • RIKEN Nishina Center for Accelerator-Based Science
  • Technical University of Munich
  • Helmholtz-Zentrum Dresden-Rossendorf
Originalspråkengelska
Artikelnummer092033
TidskriftJournal of Physics: Conference Series
Volym312
Utgåva nummerSECTION 9
StatusPublished - 2011
PublikationskategoriForskning
Peer review utfördJa