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Production cross-sections of neutron-rich Pb and Bi isotopes in the fragmentation of 238U

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Abstract

Neutron-rich lead and bismuth isotopes have been produced by cold-fragmentation reactions induced by 238U projectiles at 1A GeV impinging on a beryllium target. The high-resolving power FRagment Separator (FRS) at GSI allowed us to identify and determine the production cross-sections of 43 nuclei, nine of them for the first time ( 216, 217, 218, 219Pb and 219, 220, 221, 222, 223Bi . These data are compared to other previously measured cross-sections in similar reactions and model calculations.

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Author information

Author notes

  1. T. Enqvist

    Present address: CUPP project, P.O. Box 22, FIN-8680, Pyhäsalmi, Finland

  2. B. Fernández

    Present address: University of Liverpool, Oliver Lodge Lab., Oxford street, Liverpool, L69 7ZE, UK

  3. A. R. Junghans

    Present address: Forschungszentrum Rossendorf, Postfach 510119, 01314, Dresden, Germany

  4. P. Napolitani

    Present address: LPC Caen, ENSICAEN, Universitè de Caen, CNRS/IN2P3, F-14050, Caen Cedex 4, France

  5. J. Pereira

    Present address: NSCL, Michigan State University, East Lansing, MI, 48824, USA

  6. O. Yordanov

    Present address: INRNE, 72 Tzarigradsko chausee, BG-1784, Soa, Bulgaria

Authors and Affiliations

  1. Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain

    H. Alvarez-Pol, J. Benlliure, E. Casarejos, D. Cortina-Gil, B. Fernández & J. Pereira

  2. IPN Orsay, Campus Paris XI, F-91406, Orsay, France

    L. Audouin & P. Napolitani

  3. GSI, Planckstrasse 1, D-64291, Darmstadt, Germany

    T. Enqvist, P. Napolitani, K. -H. Schmidt & O. Yordanov

  4. University of Washington, Box 354290, 98195, Seattle, WA, USA

    A. R. Junghans

  5. CENBG, F-33175, Gradignan, France

    B. Jurado

  6. GANIL, 14076, Caen Cedex 5, France

    F. Rejmund

Authors
  1. H. Alvarez-Pol
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  2. J. Benlliure
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  3. E. Casarejos
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  4. L. Audouin
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  5. D. Cortina-Gil
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  6. T. Enqvist
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  7. B. Fernández
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  8. A. R. Junghans
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  9. B. Jurado
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  10. P. Napolitani
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  11. J. Pereira
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  12. F. Rejmund
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  13. K. -H. Schmidt
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  14. O. Yordanov
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Corresponding author

Correspondence to H. Alvarez-Pol.

Additional information

Communicated by J. Äystö

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Alvarez-Pol, H., Benlliure, J., Casarejos, E. et al. Production cross-sections of neutron-rich Pb and Bi isotopes in the fragmentation of 238U. Eur. Phys. J. A 42, 485–488 (2009). https://doi.org/10.1140/epja/i2009-10856-8

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  • DOI: https://doi.org/10.1140/epja/i2009-10856-8

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