Spectroscopy of element 115 decay chains

  • D. Rudolph
  • , U. Forsberg
  • , P. Golubev
  • , L. G. Sarmiento
  • , A. Yakushev
  • , L. L. Andersson
  • , A. Di Nitto
  • , Ch E. Düllmann
  • , J. M. Gates
  • , K. E. Gregorich
  • , C. J. Gross
  • , F. P. Heßberger
  • , R. D. Herzberg
  • , J. Khuyagbaatar
  • , J. V. Kratz
  • , K. Rykaczewski
  • , M. Schädel
  • , S. Åberg
  • , D. Ackermann
  • , M. Block
  • H. Brand, B. G. Carlsson, D. Cox, X. Derkx, K. Eberhardt, J. Even, C. Fahlander, J. Gerl, E. Jäger, B. Kindler, J. Krier, I. Kojouharov, N. Kurz, B. Lommel, A. Mistry, C. Mokry, H. Nitsche, J. P. Omtvedt, P. Papadakis, I. Ragnarsson, J. Runke, H. Schaffner, B. Schausten, P. Thörle-Pospiech, T. Torres, T. Traut, N. Trautmann, A. Türler, A. Ward, D. E. Ward, N. Wiehl

    Research output: Contribution to journalArticlepeer-review

    139 Scopus citations

    Abstract

    A high-resolution α, x-ray, and γ-ray coincidence spectroscopy experiment was conducted at the GSI Helmholtzzentrum für Schwerionenforschung. Thirty correlated α-decay chains were detected following the fusion-evaporation reaction Ca48+Am243. The observations are consistent with previous assignments of similar decay chains to originate from element Z=115. For the first time, precise spectroscopy allows the derivation of excitation schemes of isotopes along the decay chains starting with elements Z>112. Comprehensive Monte Carlo simulations accompany the data analysis. Nuclear structure models provide a first level interpretation.

    Original languageEnglish
    Article number112502
    JournalPhysical Review Letters
    Volume111
    Issue number11
    DOIs
    StatePublished - Sep 10 2013

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