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Λ-Hypernucleus formation in proton-nucleus reactions

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

We study the production ofΛ hyperons inp + A reactions within the BUU transport approach including elasticΛ N rescattering and extract theΛ sticking probabilities and hypernucleus formation cross sections as a function of bombarding energy and target mass. At 1.5 GeV about 25% of theΛ hyperons are found to be bound in case of heavy nuclei like238U leading to large cross sections forΛ-hypernuclei. The respective hypernuclei show broad distributions in excitation energy, momentum and angular momentum. The decay of theΛ hyperon in case of heavy targets is found to be almost entirely due to nonmesonic decay channels, i.e.ΛN → NN processes.

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Authors and Affiliations

  1. Institute of Physics, Jagellonian University, PL-30059, Cracow, Poland

    Z. Rudy, T. Demski, L. Jarczyk, B. Kamys, P. Kulessa & A. Strzalkowski

  2. Institut für Theoretische Physik der Universität, Heinrich-Buff-Ring 16, D-35392, Giessen, Germany

    W. Cassing

  3. Experimentelle Kernphysik II, D-52425, KfA Jülich, Jülich, Germany

    O. W. B. Schult

Authors
  1. Z. Rudy
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  2. W. Cassing
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  3. T. Demski
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  4. L. Jarczyk
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  5. B. Kamys
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  6. P. Kulessa
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  7. O. W. B. Schult
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  8. A. Strzalkowski
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Additional information

Supported by BMFT, GSI, Forschungszentrum Jülich and the Polish Committee for Scientific Research under Grant no. PB2593/2/91

One of us (Z.R.) likes to thank the Konferenz der Deutschen Akademien der Wissenschaften as well as the Volkswagen Stiftung for supporting his stay at the University of Giessen.

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Rudy, Z., Cassing, W., Demski, T. et al. Λ-Hypernucleus formation in proton-nucleus reactions. Z. Physik A - Hadrons and Nuclei 351, 217–224 (1995). https://doi.org/10.1007/BF01289532

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  • DOI: https://doi.org/10.1007/BF01289532

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