Systematic study of breakup effects on complete fusion at energies above the Coulomb barrier

分类： 物理学 >> 核物理学 提交时间： 2017-07-30

Bing Wang Wei-Juan Zhao P. R. S. Gomes En-Guang Zhao Shan-Gui Zhou

摘要： A large number of complete fusion excitation functions of reactions including the breakup channel were measured in recent decades, especially in the last few years. It allows us to investigate the systematic behavior of the breakup effects on the complete fusion cross sections. To this end, we perform a systematic study of the breakup effects on the complete fusion cross sections at energies above the Coulomb barrier. The reduced fusion functions F(x) are compared with the universal fusion functions which are used as a uniform standard reference. The complete fusion cross sections at energies above the Coulomb barrier are suppressed by the breakup of projectiles. This suppression effect for reactions induced by the same projectile is independent of the target and mainly determined by the lowest energy breakup channel of the projectile. There holds a good exponential relation between the suppression factor and the energy corresponding to the lowest breakup threshold.

同行评议状态:待评议

 点击量 1649  下载量 964  评论