Observation of the 1154.9 nm transition of antiprotonic helium
Observation of the 1154.9 nm transition of antiprotonic helium
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反质子氦 1154.9 nm 跃迁的观察
DOI：
10.1088/0953-4075/46/24/245004
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. et al.
中科院分区：
文献类型：
--
作者：
Kobayashi;T. et al.
通过激光光谱检测了反质子氦 (He) 同位素在 1154.9 nm 波长处的共振跃迁。发现占据共振母态的He粒子数以s速率衰变，这与该态的理论辐射率一致。这意味着在具有主量子数的较高态中形成的长寿命氦极少，与之前的实验结果一致。
The resonance transitionof the antiprotonic helium (He) isotope at a wavelength of 1154.9 nm was detected by laser spectroscopy. The population ofHeoccupying the resonance parent statewas found to decay at a rate ofs, which agreed with the theoretical radiative rate of this state. This implied that very few long-livedHeare formed in the higher-lying states with principal quantum number, in agreement with the results of previous experiments.