Gaussian functions in Hylleraas‐configuration‐interaction calculations. VI. The first excited state of H+3

1991 ◽  
Vol 94 (11) ◽  
pp. 7204-7207 ◽  
Author(s):  
A. Preiskorn ◽  
D. Frye ◽  
E. Clementi
Keyword(s):  
Excited State ◽  
Configuration Interaction ◽  
Gaussian Functions ◽  
First Excited State ◽  
Configuration Interaction Calculations

Continuous Ultraviolet Absorption BY Si+(4Pe): an Exploratory R-Matrix Calculation

1988 ◽  
Vol 102 ◽  
pp. 185-188
Author(s):  
J.A. Tully
Keyword(s):  
Excited State ◽  
Cross Sections ◽  
Configuration Interaction ◽  
Matrix Method ◽  
Ultraviolet Absorption ◽  
Total Cross Sections ◽  
R Matrix ◽  
First Excited State ◽  
Matrix Calculation

AbstractThe R-matrix method is used to calculate photoionisation from the first excited state 3s3p23Pe of Si+. The lowest two triplet terms 3s3p3Poand 3p23Peof the residual ion Si++are included in the calculation. They are approximated by configuration interaction wavefunctions which are constructed from six spectroscopic orbitals: 1s,2s,2p,3s,3p,3d. Partial and total cross-sections are tabulated for photon energies ranging from threshold (705 A) up to 2.5 Ryd (365 A). Some of the 3p2np autoionising resonances are delineated and shown graphically.

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