Merging of positions of zeros in dipole and quadrupole matrix elements of photoeffect from outer-shell and Rydberg states of high-Z elements

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.29.174· OSTI ID:5142435

Wang, M S; Pratt, R H

The zeros in dipole and quadrupole matrix elements of photoeffect from the ns/sub 1/2/ subshells of uranium approach common positions as n..-->..infinity. This is an illustration of the more general feature that for sufficiently large n/sub 0/ photoeffect cross sections and angular distributions from nJL subshells, aside from the bound-state normalization factor which scales the cross section, are the same for all n>n/sub 0/ (J,L fixed) except for energies very close to threshold. This behavior can be expected for all subshells and all elements and for all multipole matrix elements.

• Research Organization: Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
• OSTI ID: 5142435
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 29:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
ANGULAR DISTRIBUTION
CROSS SECTIONS
DIPOLES
DISTRIBUTION
ELEMENTS
EMISSION
ENERGY LEVELS
EXCITED STATES
GROUND STATES
IONIZATION
MATRIX ELEMENTS
METALS
MULTIPOLES
PHOTOEMISSION
PHOTOIONIZATION
QUADRUPOLES
QUANTUM NUMBERS
RYDBERG STATES
SECONDARY EMISSION
URANIUM