Breit-Pauli energy levels and radiative lifetimes in neutral chlorine |
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Authors: | N Singh A KS Jha M Mohan |
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Institution: | (1) Department of Physics & Astrophysics, University of Delhi, Delhi, 110007, India |
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Abstract: | Breit-Pauli Energy levels, oscillator strengths and transition probabilities
for all the transitions in Cl I between the fine structure levels of
3s2 3p5, 3s2 3p43d, 3s2 3p44s and 3s23p44p states are calculated using extensive configuration interaction (CI) wave functions. We have also determined the lifetimes
of 3s2 3p43d, 3s2 3p44s and 3s2 3p44p levels. The
relativistic effects are included through Breit-Pauli approximation via spin-orbit, Darwin and mass correction terms. Prior
to the calculations of the oscillator strengths and transition probabilities, we fine-tune the CI coefficient using experimental
energies. Our results are compared with experimental and other available theoretical data. The calculated energy levels are
in close agreement with most of the NIST compiled data. We predict new lifetime data for several levels where no other theoretical
and/or experimental results are available, which will form the basis for the
future experimental work.
Electronic supplementary material Online Material |
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Keywords: | 32 70 Cs Oscillator strengths lifetimes transition moments 32 10 Fn Fine and hyperfine structure 31 15 Pf Variational techniques |
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