The Effects of Deformed Projectile in Threshold Anomaly and Fusion Reaction for ^<19>F+^<208>Pb System

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Angular distributions of elastic scatterings for <SUP>19</SUP>F+<SUP>208</SUP>Pb system have been measured at six energies around the Coulomb barrier. It is found that the real and imaginary potentials show pronounced energy dependence in terms of the phenomenological optical model analysis. The real parts of potentials extracted from the fusion data are similar to those from the elastic data. A comparison with the neighbouring systems of <SUP>16</SUP>O+<SUP>208</SUP>Pb and <SUP>16</SUP>O+<SUP>209</SUP>Bi reveals that the <SUP>19</SUP>F deformations play an important role in the fusion reaction. Based on the deformed and energy dependent barrier penetration model, the calculated fusion cross sections and mean-square spin distribution agree with the experimental data well. Moreover, it is indicated that the enhancement of fusion cross sections attributes to the dynamic polarization effects around the barrier, and to the static deformation effects further below the barrier.

収録刊行物

  • Journal of Nuclear and Radiochemical Sciences

    Journal of Nuclear and Radiochemical Sciences 3(1), 27-30, 2002-06-01

    The Japan Society of Nuclear and Radiochemical Sciences

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各種コード

  • NII論文ID(NAID)
    10013977781
  • NII書誌ID(NCID)
    AA11948402
  • 本文言語コード
    ENG
  • 資料種別
    REV
  • ISSN
    13454749
  • データ提供元
    CJP書誌  J-STAGE 
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