New neutron-rich isotopes in the scandium-to-nickel region, produced by fragmentation of a 500 MeV/u86Kr beam

M. Weber, C. Donzaud, J. P. Dufour, H. Geissel, A. Grewe, D. Guillemaud-Mueller, H. Keller, M. Lewitowicz, A. Magel, A. C. Mueller, G. Münzenberg, F. Nickel, M. Pfützner, A. Piechaczek, M. Pravikoff, E. Roeckl, K. Rykaczewski, M. G. Saint-Laurent, I. Schall, C. StephanK. Sümmerer, L. Tassan-Got, D. J. Vieira, B. Voss

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Abstract

We have measured production cross-sections of the new neutron-rich isotopes58Ti,61V,63Cr,66Mn,69Fe,71Co and neighbouring isotopes that have been identified as projectile fragments from reactions between a 500 MeV/u86Kr beam and a beryllium target. The isotope identification was performed with the zero-degree magnetic spectrometer FRS at GSI, using in addition time-of-flight and energy-loss measurements. The experimental production cross-sections for the new nuclides and neighbouring isotopes are compared with an empirical parametrization. The resulting prospects for reaching even more neutron-rich isotopes, such as the doubly-magic nuclide78Ni, are discussed.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalZeitschrift für Physik A Hadrons and Nuclei
Volume343
Issue number1
DOIs
StatePublished - Mar 1992

Keywords

  • 25.70.Np
  • 27.50. + e

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