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

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Zeitschrift für Physik A Hadrons and Nuclei

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.

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Author notes

  1. M. Pfützner & K. Rykaczewski

    Present address: Institute of Experimental Physics, Warsaw University, ul. Hoza 69, PL-00-681, Warsaw, Poland

Authors and Affiliations

  1. GSI Darmstadt, Postfach 110552, W-6100, Darmstadt, Federal Republic of Germany

    M. Weber, H. Geissel, H. Keller, A. Magel, G. Münzenberg, F. Nickel, M. Pfützner, A. Piechaczek, E. Roeckl, K. Rykaczewski, I. Schall, K. Sümmerer & D. J. Vieira

  2. IPN, F-91406, Orsay Cedex, France

    C. Donzaud, D. Guillemaud-Mueller, A. C. Mueller, C. Stephan & L. Tassan-Got

  3. CEN, Plateau du Haut Vigneau, F-33175, Gradignan Cedex, France

    J. P. Dufour & M. Pravikoff

  4. Institut für Kernphysik, TH Darmstadt, W-6100, Darmstadt, Federal Republic of Germany

    A. Grewe & B. Voss

  5. GANIL, B.P. 5027, F-14021, Caen Cedex, France

    M. Lewitowicz & M. G. Saint-Laurent

  6. LANL, 87545, Los Alamos, NM, USA

    D. J. Vieira

Authors
  1. M. Weber
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  2. C. Donzaud
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  3. J. P. Dufour
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  4. H. Geissel
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  5. A. Grewe
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  6. D. Guillemaud-Mueller
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  7. H. Keller
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  8. M. Lewitowicz
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  9. A. Magel
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  10. A. C. Mueller
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  11. G. Münzenberg
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  12. F. Nickel
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  13. M. Pfützner
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  14. A. Piechaczek
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  15. M. Pravikoff
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  16. E. Roeckl
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  17. K. Rykaczewski
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  18. M. G. Saint-Laurent
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  19. I. Schall
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  20. C. Stephan
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  21. K. Sümmerer
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  23. D. J. Vieira
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Additional information

This work is part of the Ph.D. Thesis of M. Weber

We acknowledge the support of K.-H. Behr, A. Brünie, C. Bruske, K. Burkard, H.G. Burkhard, and the technical staff at GSI in setting up the FRS. Furthermore, we would like to thank the SIS operation crew and the GSI target laboratory for fruitful collaboration. One of us (DJV) would like to acknowledge support from the Alexander von Humboldt Foundation and the warm hospitality of GSI while on leave from Los Alamos.

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Weber, M., Donzaud, C., Dufour, J.P. et al. New neutron-rich isotopes in the scandium-to-nickel region, produced by fragmentation of a 500 MeV/u86Kr beam. Z. Physik A - Hadrons and Nuclei 343, 67–71 (1992). https://doi.org/10.1007/BF01291599

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  • DOI: https://doi.org/10.1007/BF01291599

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