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Production of neutron rich nuclei by fragmentation of 760 A·MeV 136Xe

  • J. Friese
  • , H. J. Körner
  • , J. Reinhold
  • , R. Schneider
  • , H. Trieb
  • , K. Zeitelhack
  • , B. Blank
  • , T. Brohm
  • , Y. Fujita
  • , H. Geissel
  • , W. König
  • , G. Münzenberg
  • , F. Nickel
  • , M. Pfützner
  • , K. Rykaczewski
  • , I. Schall
  • , D. Schardt
  • , A. Schröter
  • , M. Steiner
  • , K. Sümmerer
  • B. Voss, J. Weckenmann

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The fragmentation of 760 A·MeV 136Xe projectiles impinging on a 27Al target has been investigated at the fragment separator FRS at GSI Darmstadt. Production cross sections for neutron rich nuclei in the 116 ≤ A ≤ 134 mass region have been determined and are compared to an empirical parametrisation as well as to model calculations. For the double magic nucleus 132Sn we extrapolate σ ≅ 0.4 ± 0.3 μbarn.

Original languageEnglish
Pages (from-to)753-756
Number of pages4
JournalNuclear Physics A
Volume553
Issue numberC
DOIs
StatePublished - Mar 1 1993

Funding

The measured production cross sections for vet5" neutron rich fi'agments in the A-125 mass region are well predicted by empirical systematics \[5\]a ,d can be satisfyingly reproduced by the statistical abrasion model \[7\].T he "memory effect", i.e the influence of the projectile neutron excess, is revealed by the data, although somewhat weaker than expected, A comparison to the results of a recent experiment 129Xe + ~AI at Eke, = 780 A-MeV, in particular with respect to longitudinal and transverse momentum transfers, will give a motx, detailed insight in the underlying reaction mechanism. We are ; ,dehted to the GSI staff for given support and to K.1I. Schmidt (GSI) for making his abrasion model code available. This work has been supported by BMFT 06-TM-108.

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