Article

The Breast Cancer Fund wishes to thank the following scientific experts who reviewed and commented on the Framework and Evidence sections of the 2008State of the Evidence: The Connection between Breast Cancer and the Environment

Authors:

Suzanne E Fenton

North Carolina State University

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Article

Correlation in the photoionization process: the relaxed Hartree-Fock method

July 1992 · Journal of Molecular Structure THEOCHEM

Various concepts which arise in connection with correlation effects in photoionization are examined through a simple example: the He Is cross-section calculation. The classification of correlation is examined from the viewpoint of the frozen orbital and relaxed Hartree-Fock models. It is demonstrated that within the frozen orbital model the definition of initial and final ionic state correlation ... [Show full abstract] is somewhat arbitrary. Within the relaxed Hartree-Fock framework bound state correlation naturally subdivides into three categories: initial state, relaxation, and final ionic state. The He diagram photoionization cross section, calculated at various levels of approximation from hv = 26 to 54 eV, is presented and discussed. It is shown that the inclusion of initial state correlation and relaxation are necessary for accurate results.

Dispersion Relations and Inconsistency of $\rho$ data

January 2003

O. V. Selyugin

The high energy elastic nucleon cross section is treated from the viewpoint of the basic principles of local field theory. The connection between the energy dependence of σtot and the ρ — ratio of the real to imaginary parts of the forward elastic scattering amplitude is examined in the framework of dispersion relations, derivative dispersion relations and crossing symmetry.

The Breast Cancer Fund wishes to thank the following scientific experts who reviewed and commented on the Framework and Evidence sections of the 2008State of the Evidence: The Connection between Breast Cancer and the Environment

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Correlation in the photoionization process: the relaxed Hartree-Fock method

Dispersion Relations and Inconsistency of $\rho$ data

The Breast Cancer Fund wishes to thank the following scientific experts who reviewed and commented on the Framework and Evidence sections of the 2008State of the Evidence: The Connection between Breast Cancer and the Environment

No full-text available

Correlation in the photoionization process: the relaxed Hartree-Fock method

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Dispersion Relations and Inconsistency of $\rho$ data