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首页> 外文会议>Application of Accelerators in Research and Industry >Contributions of negative energy states (NES) to magnetic dipole transitions in the helium isoelectronic sequence, and for the neutral alkalis
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Contributions of negative energy states (NES) to magnetic dipole transitions in the helium isoelectronic sequence, and for the neutral alkalis

机译：负能态（NES）对氦等电子序列中的磁偶极跃迁以及中性碱的贡献

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Direct effects of negative energy states on atomic parameters are in general extremely weak and can be neglected. More precisely, it is found that the no-pair relativistic Hamiltonian is very precise for calculations of the energy and electric multipole operators. Only in certain cases of magnetic dipole transition rates is this approximation insufficient. We discuss the calculations of magnetic dipole transition rates in comparison with existing measurements, and the progress of our measurements in helium between two excited triplet states; we also discuss the NES effects and possible measurements in ns -> (n+1 )s transitions in the alkalis.
机译：负能态对原子参数的直接影响通常非常微弱，可以忽略不计。更准确地说，发现不对偶相对论哈密顿量对于能量和电多极算子的计算非常精确。仅在磁偶极子跃迁速率的某些情况下，这种近似才足够。我们将与现有测量结果进行比较，讨论磁偶极跃迁速率的计算，以及在两个激发三重态之间的氦气测量结果。我们还讨论了在碱中ns->（n + 1）s跃迁中的NES效应和可能的测量。

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