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Limiting behavior of target fragmentation in the reactions of lanthanide nuclei induced by heavy projectiles

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Abstract

Nuclear reactions of165Ho induced by 1.0 GeV15N or 1.8 GeV14N ions and those of141Pr induced by 2.3 GeV or 3.8 GeV40Ar ions have been studied by off-line γ-ray spectrometry. Mass distributions of the products were confirmed to reveal a limiting characteristics at projectile energies beyond 2 GeV. Longitudinal momentum transfer was measured with a thick-target-thick-catcher technique. The results demonstrated that a provisional limiting of the recoil velocity appears in the energy range of 2–10 GeV, besides the ultimate limiting condition already pointed out. The coincidence in the onset energy of the limiting behavior was interpreted as the result of the existence of the limit heating of nucleus.

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Author notes

  1. K. Takesako

    Present address: Dojindo Laboratories, 861-22, Mashiki, Kumamoto, Japan

Authors and Affiliations

  1. Department of Chemistry and Laboratory of Nuclear Studies, Faculty of Science, Osaka University, 560, Toyonaka, Osaka, Japan

    A. Yokoyama, K. Takesako, T. Saito & H. Baba

  2. Institute of Physical and Chemical Research (RIKEN), 351-01, Wako, Saitama, Japan

    Y. Ohkubo

  3. Department of Chemistry, Faculty of Science, Nagoya University, 464-01, Chikusa-ku, Nagoya, Japan

    A. Shinohara & M. Furukawa

Authors
  1. A. Yokoyama
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  2. K. Takesako
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  3. T. Saito
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  4. H. Baba
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  5. Y. Ohkubo
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  6. A. Shinohara
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  7. M. Furukawa
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Yokoyama, A., Takesako, K., Saito, T. et al. Limiting behavior of target fragmentation in the reactions of lanthanide nuclei induced by heavy projectiles. Journal of Radioanalytical and Nuclear Chemistry Letters 212, 451–459 (1996). https://doi.org/10.1007/BF02163290

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  • DOI: https://doi.org/10.1007/BF02163290

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