Test of aq-fractionalV(N-q)Hartree-Fock potential for the calculation of double photoionization cross sections of neon

Autor:	H. Schmoranzer, K.-H. Schartner, D. A. Lazarev, V. M. Zelichenko, M. Ya. Amusia, V. A. Kilin, Dm A. Lazarev, Arno Ehresmann
Rok vydání:	2001
Předmět:	Physics Neon chemistry Hartree–Fock method chemistry.chemical_element Function (mathematics) Photoionization Atomic physics Condensed Matter Physics Atomic and Molecular Physics and Optics Parametric statistics
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 34:3993-4001
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/34/20/310
Popis:	The approach of a parametric V(N-q) Hartree-Fock potential with fractional q is developed and applied for the first time for the calculation of the double photoionization cross sections of Ne. A minimum of the squared difference between the length-form and velocity-form cross sections is used as a criterion for calculating the values of q. It is found that the minimization procedure leads to a practically exact equality of the length-form and velocity-form cross sections for the Ne III 2s22p4[3P,1D,1S], 2s12p5[3P,1P] and 2s02p6[1S] states in the exciting-photon energy region from the double-ionization threshold up to 325 eV, if q is considered as a function of the exciting-photon energy. The calculated V(N-q) cross sections are in better agreement with the experimental data than those for the V(N-1) and V(N-2) potentials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d8e02a96997c9b509b8ee95ff9b9f914 https://doi.org/10.1088/0953-4075/34/20/310 Zobrazit plný text záznamu