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Energy damping feature in light heavy-ion reactions

  • Heavy Ion Physics, Fission
  • Published:
Zeitschrift für Physik A Atomic Nuclei

Abstract

The energy damped reaction products from37Cl+12C,27Al,48Ti and16O+48Ti were measured over a wide range of angles (typically 18°<θ lab<70°), incident energies (160 <E lab(37Cl)<200 MeV,E lab(16O)=118 MeV) and charges Z, including two systems (37Cl+37Al and16O+48Ti) which lead to the same compound nucleus64Zn with the same excitation energy and comparable angular momenta. The angular dependences of total kinetic energy (TKE) and dσ/dθ were decomposed into two components (forward peaked and nearly constant at backward angles), and the elemental TKE and cross sections were derived. The backward components of37Cl+27Al and16O+48Ti exhibit very different Z-distributions, indicating that the fragments do not originate from compound nucleus decay. The results can be understood in terms of an energy damping process.

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Author information

Author notes

  1. W. Yokota

    Present address: Japan Atomic Energy Research Institute, 370-12, Gunma, Japan

  2. T. Nakagawa

    Present address: Institute of Physics and Chemical Research, 351, Saitama, Japan

  3. Y. Fukuchi

    Present address: Hitachi Construction Machinary, Co., Ltd., 300, Ibaraki, Japan

  4. K. Suzuki

    Present address: Hitachi Medical Co., Ltd., 277, Chiba, Japan

Authors and Affiliations

  1. Department of Physics and the Tandem Accelerator Center, University of Tsukuba, 305, Ibaraki, Japan

    W. Yokota, T. Nakagawa, M. Ogihara, T. Komatsubara, Y. Fukuchi, K. Suzuki, W. Galster, Y. Nagashima, K. Furuno, S. M. Lee & T. Mikumo

  2. Department of Physics, Japan Atomic Energy Research Institute, 319-11, Ibaraki, Japan

    K. Ideno, Y. Tomita, H. Ikezoe, Y. Sugiyama & S. Hanashima

Authors
  1. W. Yokota
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  2. T. Nakagawa
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  3. M. Ogihara
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  4. T. Komatsubara
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  5. Y. Fukuchi
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  6. K. Suzuki
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  7. W. Galster
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  8. Y. Nagashima
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  9. K. Furuno
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  10. S. M. Lee
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  11. T. Mikumo
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  12. K. Ideno
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  13. Y. Tomita
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  14. H. Ikezoe
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  15. Y. Sugiyama
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  16. S. Hanashima
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Additional information

The authors would like to thank the staffs of the accelerator facilities at JAERI and UTTAC for their support.

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Yokota, W., Nakagawa, T., Ogihara, M. et al. Energy damping feature in light heavy-ion reactions. Z. Physik A - Atomic Nuclei 333, 379–388 (1989). https://doi.org/10.1007/BF01299691

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  • DOI: https://doi.org/10.1007/BF01299691

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