Cross Sections of Evaporation Residues of <SUP>12</SUP>C＋<SUP>93</SUP>Nb in the Vicinity of the Coulomb Barrier

Qian Xing; Jiang Dongxing; Lin Junsong; Liu Daming; Li Ze

Chinese Physics C> 1995, Vol. 19> Issue(7) : 603-611

Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Department of Technical Physics, Peking University, Beijing 1008711 Institute of Atomic Energy, Beijing 102413

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Abstract：
Cross sections for 8 products from the fusion reaction ¹²C＋⁹³Nb in the projectile energy range from 28.3 to 45.7 MeV have been obtained by off-line γ technique.The experimental results have been analysed in terms of the simplified coupledchannel model, including the coupling of the inelastic excitation and transfer channels, and statistical model for the compound nuclei. As a result, the excitation functions for the neutron emission channels are well reproduced by the CASCADE code. In the case of proton, alpha emission channels show higher cross sections than the CASCADE predictions. The transfer of alpha particles as doorways to fusion seems to be the main process which is responsible for the fusion enhancement. The experiment shows that the reaction system has large transfer cross section at subbarrier energy.

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Qian Xing, Jiang Dongxing, Lin Junsong, Liu Daming and Li Ze. Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier[J]. Chinese Physics C, 1995, 19(7): 603-611.

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Received: 1900-01-01
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沈阳化工大学材料科学与工程学院沈阳 110142

Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Corresponding author: Qian Xing,

Department of Technical Physics, Peking University, Beijing 1008711 Institute of Atomic Energy, Beijing 102413

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1995-07-05

Abstract: Cross sections for 8 products from the fusion reaction ¹²C＋⁹³Nb in the projectile energy range from 28.3 to 45.7 MeV have been obtained by off-line γ technique.The experimental results have been analysed in terms of the simplified coupledchannel model, including the coupling of the inelastic excitation and transfer channels, and statistical model for the compound nuclei. As a result, the excitation functions for the neutron emission channels are well reproduced by the CASCADE code. In the case of proton, alpha emission channels show higher cross sections than the CASCADE predictions. The transfer of alpha particles as doorways to fusion seems to be the main process which is responsible for the fusion enhancement. The experiment shows that the reaction system has large transfer cross section at subbarrier energy.

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Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

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Cross Sections of Evaporation Residues of 12C＋93Nb in the Vicinity of the Coulomb Barrier

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Cross Sections of Evaporation Residues of 12C＋93Nb in the Vicinity of the Coulomb Barrier

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Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier

Cross Sections of Evaporation Residues of ¹²C＋⁹³Nb in the Vicinity of the Coulomb Barrier