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- W2044737712 abstract "The present state of knowledge about the excited states of the negative nitrogen ion is reviewed, and calculations of energies and lifetimes of the states belonging to the configuration are reported. Systematic MCHF procedures are applied to the study of the electron affinities of the and states of relative to the neutral nitrogen parent state. Assuming a core for both the atom and the negative ion, a non-relativistic electron affinity of 0.871(2) eV is predicted for the term which implies that the term in is located 1.513 eV above the ground state of nitrogen. Similarly, the term is predicted to be 1.390(1) eV above the term. The two terms can decay only via magnetic interactions, and CI calculations give lifetimes equal to and for the and terms, respectively. We estimate the lifetimes to be accurate within a factor of five. The importance of the results, in particular of the lifetime values, for dating is pointed out." @default.
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- W2044737712 date "1997-03-28" @default.
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- W2044737712 title "Excited states of the negative nitrogen ion: energies and lifetimes" @default.
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- W2044737712 doi "https://doi.org/10.1088/0953-4075/30/6/014" @default.
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