Energy Levels, Lifetimes, and Transition Properties for N <span style="font-variant: small-caps">iii</span> – <span style="font-variant: small-caps">v</span>
We present excitation energies, transition wavelengths, electric dipole (E1) transition rates, oscillator strengths, line strengths, and lifetimes for the 86 lowest states up to and including <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline&quo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
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| Series: | Atoms |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-2004/13/6/49 |
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| Summary: | We present excitation energies, transition wavelengths, electric dipole (E1) transition rates, oscillator strengths, line strengths, and lifetimes for the 86 lowest states up to and including <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>1</mn><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup></mrow><mn>2</mn><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mn>7</mn><mi mathvariant="normal">f</mi></mrow></semantics></math></inline-formula> in N <span style="font-variant: small-caps;">iii</span>, the 125 lowest states up to and including <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>1</mn><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup></mrow><mn>2</mn><mi mathvariant="normal">s</mi><mn>7</mn><mi mathvariant="normal">f</mi></mrow></semantics></math></inline-formula> in N <span style="font-variant: small-caps;">iv</span>, and the 53 lowest states up to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1</mn><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mn>8</mn><mi mathvariant="normal">g</mi></mrow></semantics></math></inline-formula> in N <span style="font-variant: small-caps;">v</span> using the multiconfiguration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) methods. The computed results are then compared with data from the Atomic Spectra Database of the National Institute of Standards and Technology (NIST-ASD), experimental results, and other theoretical studies. For all levels in N <span style="font-variant: small-caps;">iii</span> – <span style="font-variant: small-caps;">v</span>, the root mean square energy differences from the NIST values are 130, 103, and 6 cm<sup>−1</sup>, respectively. Compared to previous multiconfiguration Hartree–Fock and the Breit–Pauli (MCHF-BP) calculations, 89.3%, 98.5%, and 100% of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>log</mo><mo>(</mo><mi>g</mi><mi>f</mi><mo>)</mo></mrow></semantics></math></inline-formula> values for N <span style="font-variant: small-caps;">iii</span> – <span style="font-variant: small-caps;">v</span> agree within 5%, respectively. |
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| ISSN: | 2218-2004 |