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arXiv 1802.01181nucl-th
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非常规破裂模式对弱束缚核不完全熔合的影响

Effects of unconventional breakup modes on incomplete fusion of weakly bound nuclei

Alexis Diaz-Torres, Daanish Quraishi

摘要:

研究了能量高于库仑势垒的$^6$ Li + $^{209}$ Bi碰撞的不完全熔合动力学.在{ \sc platypus}代码中实现的经典动力学模型用于理解和量化$^6$ Li共振态和转移触发分裂模式(涉及短寿命的弹状核,如$^8$ Be和$^5$ Li)对不完全聚变产物形成的影响。模型计算很好地解释了实验中的不完全聚变激发函数,表明(i)$^6$ Li的延迟直接分裂减少了不完全聚变截面,(ii)中子剥离通道实际上决定了这些截面。

英文摘要:

The incomplete fusion dynamics of $^6$Li + $^{209}$Bi collisions at energies above the Coulomb barrier is investigated. The classical dynamical model implemented in the {\sc platypus} code is used to understand and quantify the impact of both $^6$Li resonance states and transfer-triggered breakup modes (involving short-lived projectile-like nuclei such as $^8$Be and $^5$Li) on the formation of incomplete fusion products. Model calculations explain the experimental incomplete-fusion excitation function fairly well, indicating that (i) delayed direct breakup of $^6$Li reduces the incomplete fusion cross-sections, and (ii) the neutron-stripping channel practically determines those cross-sections.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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