Scaling laws in double photoionization

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.5120· OSTI ID:7049809

Kornberg, M A; Miraglia, J E ^[1]

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1. Instituto de Astronomia y Fisica del Espacio, Casilla de Correo No. 67, Sucursal 28, 1428 Buenos Aires (Argentina)

Double-photoionization cross sections are calculated for two-electron targets H[sup [minus]], He, Li[sup +], and O[sup 6+] using a correlated and an uncorrelated two-electron continuum wave function (C3 and C2 models, respectively). As the target nuclear charge [ital Z][sub [ital T]] is increased, the double-photoionization cross section is found to scale as [ital Z][sub [ital T]][sup [minus]4] and the electron energy distribution as [ital Z][sub [ital T]][sup [minus]6]. Conclusions are extracted about the behavior of the cross sections in the high-energy and threshold regions. The ratio of double to single photoionization scales as [ital Z][sub [ital T]][sup [minus]2], as in the case of proton impact.

• OSTI ID: 7049809
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANIONS
ATOMIC NUMBER
CHARGED PARTICLES
CROSS SECTIONS
ELEMENTS
ENERGY DEPENDENCE
FLUIDS
FUNCTIONS
GASES
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
IONIZATION
IONS
LITHIUM IONS
MANY-BODY PROBLEM
NONMETALS
OXYGEN IONS
PHOTOIONIZATION
RARE GASES
SCALING LAWS
TWO-BODY PROBLEM
WAVE FUNCTIONS