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首页> 外文会议>International Workshop on the New Applications of Nuclear Fission; 20030907-12; Bucharest(RO) >TWO-PROTON RADIOACTIVITY OF ~(45)FE
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TWO-PROTON RADIOACTIVITY OF ~(45)FE

机译：〜（45）FE的两质子放射性

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摘要

The decay of the proton drip-line nucleus ~(45)Fe has been studied at the SISSI-LISE3 facility of GANIL, after projectile fragmentation of a ~(58)Ni primary beam. Fragment-implantation events have been correlated with radioactive decay events in silicon telescopes on an event-by-event basis. The decay-energy spectrum of ~(45)Fe implants shows a distinct peak consistent with a two-proton ground-state decay of ~(45)Fe. None of the events in the peak were found to be in coincidence with γ radiation or with β particles which were searched for in the telescope-surrounding detectors. The decay energy for ~(45)Fe agrees nicely with several theoretical predictions for two-proton emission. These predictions strongly support the observed decay to be a simultaneous two-proton ground-state decay.
机译：在〜（58）Ni一次射束的射弹破碎后，在GANIL的SISSI-LISE3设施中研究了质子滴线核〜（45）Fe的衰减。在逐个事件的基础上，碎片植入事件已与硅望远镜中的放射性衰变事件相关。 〜（45）Fe植入物的衰变能谱显示出一个明显的峰，与〜（45）Fe的两个质子基态衰变一致。没有发现峰值中的事件与在望远镜周围探测器中搜索到的γ辐射或与β粒子一致。 〜（45）Fe的衰变能量与两质子发射的几个理论预测非常吻合。这些预测强烈支持观察到的衰变是同时发生的两个质子基态衰变。

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