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Production cross-sections of protactinium and thorium isotopes produced in fragmentation of U at 1 A GeV

Research output: Contribution to journalArticle

  • J. Kurcewicz
  • M. Pfützner
  • C. Mazzocchi
  • K.-H. Schmidt
  • A. Kelić
  • F. Attallah
  • E. Badura
  • C.N. Davids
  • J. Döring
  • H. Geissel
  • M. Górska
  • R. Grzywacz
  • M. Hellström
  • Z. Janas
  • M. Karny
  • A. Korgul
  • I. Mukha
  • C. Plettner
  • A. Robinson
  • E. Roeckl
  • K. Rykaczewski
  • K. Schmidt
  • D. Seweryniak
  • K. Sümmerer
  • H. Weick

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Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalNuclear Physics A
Issue number1-4
Publication statusPublished - 6 Mar 2006


The production cross-sections of proton-rich protactinium and thorium isotopes have been investigated for the fragmentation of 1 A GeV U in a beryllium target at the SIS/FRS facility at GSI Darmstadt. The experimental results are compared with the predictions of an abrasion-ablation model of nuclear fragmentation yielding good overall agreement. Weak evidence for first observation of the new isotopes Th and Pa is presented.

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