High-precision measurement of the magnetic-dipole decay rate of metastable heliumlike carbon ions in a storage ring.
High-precision measurement of the magnetic-dipole decay rate of metastable heliumlike carbon ions in a storage ring.
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DOI：
10.1103/physrevlett.72.1616
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发表时间：
1994-03
影响因子：
8.6
通讯作者：
HT Schmidt;P. Forck;M. Grieser;D. Habs;J. Kenntner;G. Miersch;R. Repnow;Ulrich Schramm;T. Schüßler;D. Schwalm;Andreas Wolf
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文献类型：
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作者：
HT Schmidt;P. Forck;M. Grieser;D. Habs;J. Kenntner;G. Miersch;R. Repnow;Ulrich Schramm;T. Schüßler;D. Schwalm;Andreas Wolf
在海德堡的离子存储环TSR上测量了c4 +离子在亚稳态1s2 s3s1态的辐射衰减率，观察到介电子复合率与该亚稳态共振特性的时间依赖性。48.57±0.11 s−1的非常精确的结果使我们能够区分不同的理论方法。我们的结果与利用类氦碳离子的非相对论径向波函数计算的磁偶极子衰变率非常一致。
The radiative decay rate of C 4+ ions in the metastable 1s2 s 3 S 1 state has been measured at the ion storage ring TSR in Heidelberg, observing the time dependence of the dielectronic recombination rate on resonances characteristic for this metastable state. The very accurate result of 48.57±0.11 s− 1 allows us to distinguish between different theoretical approaches. Our result is in excellent agreement with a calculation of the magnetic-dipole decay rate using nonrelativistic radial wave functions for the heliumlike carbon ion.