论文标题

裂变片段激发能量共享超出分裂

Fission Fragment Excitation Energy Sharing Beyond Scission

论文作者

Bulgac, A.

论文摘要

一个简化的,尽管是现实的,但模型描述了两个退化和加速裂变片段,由于它们相互的库仑排斥力,表明裂变片段在停止交换核子后,裂变片段在它们停止后都能共享激发能。这种机制导致裂变片段的总动能较低,尤其是如果激发裂变片段的侏儒共振。即使这里的重点是裂变,类似的论点也适用于重离子反应中的碎片。

A simplified, though realistic, model describing two receding and accelerating fission fragments, due to their mutual Coulomb repulsion, shows that fission fragments share excitation energy well after they ceased to exchange nucleons. This mechanism leads to a lower total kinetic energy of the fission fragments, particularly if the pygmy resonances in the fission fragments are excited. Even though the emphasis here is on fission, similar arguments apply to fragments in heavy-ion reactions.

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