Variational calculations for excited states in He I: Improved estimation of the ionization energy from accurate energies for the n /sup 3/S, n /sup 1/D, n /sup 3/D series
Journal Article
·
· Phys. Rev. A; (United States)
Variational calculations with correlated basis sets have been carried out to obtain the nonrelativistic energies for the n /sup 3/S (n = 2--6), n /sup 1/D (n = 3--8), and n /sup 3/D (n = 3--8) series in He I with estimated accuracies of 10/sup -3/--10/sup -5/ cm/sup -1/. A comparison of the results with recently reevaluated experimental energy values, with the aid of available relativistic and mass-polarization corrections, suggests a value of 198 310.773(1) cm/sup -1/ for the ionization energy for He I on an energy scale fixed by the 2 /sup 1/P value of 171 135.0000 cm/sup -1/.
- Research Organization:
- Department of Electronics, Nagoya University, Nagoya 464, Japan
- OSTI ID:
- 5998957
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 31:2; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CONVERGENCE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXTRAPOLATION
FLUIDS
FUNCTIONS
GASES
HELIUM
IONIZATION POTENTIAL
NONMETALS
NUMERICAL SOLUTION
QUANTUM NUMBERS
RARE GASES
VARIATIONAL METHODS
WAVE FUNCTIONS
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CONVERGENCE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXTRAPOLATION
FLUIDS
FUNCTIONS
GASES
HELIUM
IONIZATION POTENTIAL
NONMETALS
NUMERICAL SOLUTION
QUANTUM NUMBERS
RARE GASES
VARIATIONAL METHODS
WAVE FUNCTIONS