Spontaneous relativistic two-photon decay rate mathematical expression in helium-like systems
2001 ◽
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pp. 27-31
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2014 ◽
Vol 488
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pp. 152005
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Keyword(s):
1962 ◽
Vol 9
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pp. 512-516
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1966 ◽
Vol 17
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pp. 150-153
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