Photoabsorption cross sections of two-electron atoms by the coordinate rotation method: Application to H$sup -$ and several states of He

Journal Article · Thu Jan 15 04:00:00 EST 1976 · J. Chem. Phys., v. 64, no. 2, pp. 477-480

DOI:https://doi.org/10.1063/1.432263· OSTI ID:4071937

Rescigno, T N; McCurdy, Jr, C W; McKoy, V

The coordinate rotation method, recently extended by us to treat photoabsorption processes, is used to obtain photoabsorption cross sections for several two-electron atoms. The calculations are performed using standard configuration--interaction methods; the need for atomic continuum wavefunctions is completely avoided in this approach. We have computed the photodetachment cross section of H$sup -$ and photoionization cross sections for He in its ground and 2 $sup 1$S states. In all cases, the computed cross sections agree well with results obtained by numerical integration and with available experimental data. (AIP)

• Research Organization: A. A. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-021122
• OSTI ID: 4071937
• Journal Information: J. Chem. Phys., v. 64, no. 2, pp. 477-480, Journal Name: J. Chem. Phys., v. 64, no. 2, pp. 477-480; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

*HELIUM-- PHOTOIONIZATION
*HYDROGEN IONS 1 MINUS-- ELECTRON DETACHMENT
640302* --Physics Research--Atomic
Molecular & Chemical Physics--Atomic & Molecular Properties
CONFIGURATION INTERACTION
CROSS SECTIONS
N60200* --Physics (Atomic & Molecular)--Atomic & Molecular Properties