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首页> 外文期刊>The European Physical Journal, A. Hadrons and Nuclei >Study of light proton-rich nuclei by complete kinematics measurements
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Study of light proton-rich nuclei by complete kinematics measurements

机译：通过完整的运动学测量研究轻质子富核

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摘要

Light proton-rich bound and unbound nuclei were produced by means of stripping reactions of secondary beams of 20Mg and 18Ne. The decays of the unbound nuclei ~(18,19)Na have been measured by detecting their decay products ~(17,18)Ne and one proton and by performing an invariant-mass reconstruction. For ~(18)Na, the present work is the first measurement of its decay. As the decay scheme of this nucleus could not be determined, two possible scenarios are proposed and discussed. In addition, the decay of excited states in ~(17)Ne via two-proton emission was observed. The proton-proton angular distribution is isotropic for the first two-proton-emitting states, whereas higher-lying states seem to decay by a correlated two-proton emission, consistent with a ~2He emission pattern for part of the decay strength.
机译：通过20Mg和18Ne的次生电子束的汽提反应，产生了轻质的富质子的结合核和未结合核。通过检测衰变产物〜（17,18）Ne和一个质子并进行不变质量重建，可以测量未结合核〜（18,19）Na的衰变。对于〜（18）Na，目前的工作是对其衰变的首次测量。由于无法确定该核的衰变方案，因此提出并讨论了两种可能的情况。另外，观察到〜（17）Ne中激发态通过二质子发射的衰减。质子-质子角分布对于前两个质子发射态是各向同性的，而较高的态似乎通过相关的两个质子发射而衰减，这与部分衰减强度的〜2He发射模式一致。

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