Spectroscopy of element 115 decay chains.

نویسندگان

  • 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
چکیده

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 48Ca + 243Am. 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.

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عنوان ژورنال:
  • Physical review letters

دوره 111 11  شماره 

صفحات  -

تاریخ انتشار 2013