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arXiv 1401.2833nucl-thnucl-ex
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Laser -核反应:国家人口远高于Yrast,远离稳定

Laser-Nucleus Reactions: Population of States far above Yrast and far from Stability

A. Pálffy, H. A. Weidenmüller

摘要:

在光子吸收速率与核平衡速率相当的准绝热区,对强零秒激光脉冲引起的核反应进行了理论研究。我们发现,多光子吸收导致形成一个复合核的激发能几百兆电子伏以上的yraast线到目前为止未开发的制度。在这些能量下,进一步的光子吸收受到中子衰变和/或诱导核子发射的限制。用持续时间为$\approx 50$ zs的激光脉冲,产生远离稳定线的富质子核。

英文摘要:

Nuclear reactions induced by a strong zeptosecond laser pulse are studied theoretically in the quasiadiabatic regime where the photon absorption rate is comparable to the nuclear equilibration rate. We find that multiple photon absorption leads to the formation of a compound nucleus in the so-far unexplored regime of excitation energies several hundred MeV above the yrast line. At these energies, further photon absorption is limited by neutron decay and/or induced nucleon emission. With a laser pulse of $\approx 50$ zs duration, proton-rich nuclei far off the line of stability are produced.

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