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Title: Correlations in the high-energy photoeffect

Abstract

We examine correlations in high-energy photoeffect, utilizing a perturbative treatment of the effects beyond the independent particle approximation (IPA) in the high-energy photoionization of states with arbitrary values of the angular momenta l. The dominant mechanism of IPA breaking is discussed. The dependence of IPA breaking contributions on the parameters 1/Z and {alpha}Z is analyzed. In the general case the amplitude is expressed as a linear combination of IPA amplitudes. The development of precise experiments, together with the demonstration that there is substantial cancellation among the nonrelativistic partial correlations amplitudes in many cases, particularly for ground-state atoms, makes a relativistic approach to the problem desirable, even at relatively low values of photon energy.

Authors:
 [1];  [2]
  1. Petersburg Nuclear Physics Institute, St. Petersburg 188300 (Russian Federation)
  2. University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
Publication Date:
OSTI Identifier:
20786300
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 72; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevA.72.062701; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; ANGULAR MOMENTUM; APPROXIMATIONS; ATOMS; CORRECTIONS; CORRELATIONS; GROUND STATES; PERTURBATION THEORY; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; PHOTONS; RELATIVISTIC RANGE

Citation Formats

Drukarev, E. G., and Pratt, R. H.. Correlations in the high-energy photoeffect. United States: N. p., 2005. Web. doi:10.1103/PHYSREVA.72.0.
Drukarev, E. G., & Pratt, R. H.. Correlations in the high-energy photoeffect. United States. doi:10.1103/PHYSREVA.72.0.
Drukarev, E. G., and Pratt, R. H.. Thu . "Correlations in the high-energy photoeffect". United States. doi:10.1103/PHYSREVA.72.0.
@article{osti_20786300,
title = {Correlations in the high-energy photoeffect},
author = {Drukarev, E. G. and Pratt, R. H.},
abstractNote = {We examine correlations in high-energy photoeffect, utilizing a perturbative treatment of the effects beyond the independent particle approximation (IPA) in the high-energy photoionization of states with arbitrary values of the angular momenta l. The dominant mechanism of IPA breaking is discussed. The dependence of IPA breaking contributions on the parameters 1/Z and {alpha}Z is analyzed. In the general case the amplitude is expressed as a linear combination of IPA amplitudes. The development of precise experiments, together with the demonstration that there is substantial cancellation among the nonrelativistic partial correlations amplitudes in many cases, particularly for ground-state atoms, makes a relativistic approach to the problem desirable, even at relatively low values of photon energy.},
doi = {10.1103/PHYSREVA.72.0},
journal = {Physical Review. A},
number = 6,
volume = 72,
place = {United States},
year = {Thu Dec 15 00:00:00 EST 2005},
month = {Thu Dec 15 00:00:00 EST 2005}
}