Production mechanism of superheavy nuclei in massive fusion reactions

FENG Zhao-Qing; JIN Gen-Ming; LI Jun-Qing; Werner Scheid

doi:10.1088/1674-1137/33/S1/028

Chinese Physics C> 2009, Vol. 33> Issue(S1) : 86-88 DOI: 10.1088/1674-1137/33/S1/028

Production mechanism of superheavy nuclei in massive fusion reactions

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Within the concept of the dinuclear system (DNS), a dynamical model is proposed for describing the formation of superheavy nuclei in complete fusion reactions by incorporating the coupling of the relative motion to the nucleon transfer process. The capture of two heavy colliding nuclei, the formation of the compound nucleus and the de-excitation process are calculated by using an empirical coupled channel model, solving a set of microscopically derived master equations numerically and applying statistical theory, respectively. Fusion-fission reactions and evaporation residue excitation functions of synthesizing superheavy nuclei (SHN) are investigated systematically and compared them with available experimental data. The possible factors that affecting the production cross sections of SHN are discussed in this workshop.

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FENG Zhao-Qing, JIN Gen-Ming, LI Jun-Qing and Werner Scheid. Production mechanism of superheavy nuclei in massive fusion reactions[J]. Chinese Physics C, 2009, 33(S1): 86-88. doi: 10.1088/1674-1137/33/S1/028

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Received: 2008-10-22
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Production mechanism of superheavy nuclei in massive fusion reactions

Corresponding author: FENG Zhao-Qing,

Received Date: 2008-10-22

Accepted Date: 1900-01-01

Available Online: 2009-01-10

Abstract: Within the concept of the dinuclear system (DNS), a dynamical model is proposed for describing the formation of superheavy nuclei in complete fusion reactions by incorporating the coupling of the relative motion to the nucleon transfer process. The capture of two heavy colliding nuclei, the formation of the compound nucleus and the de-excitation process are calculated by using an empirical coupled channel model, solving a set of microscopically derived master equations numerically and applying statistical theory, respectively. Fusion-fission reactions and evaporation residue excitation functions of synthesizing superheavy nuclei (SHN) are investigated systematically and compared them with available experimental data. The possible factors that affecting the production cross sections of SHN are discussed in this workshop.

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Production mechanism of superheavy nuclei in massive fusion reactions

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