Out-of-plane ( e,2e ) measurements and calculations on He autoionizing levels as a function of incident-electron energy

Autor:	B.A. deHarak, Brian N. Kim, Klaus Bartschat, O. Zatsarinny, N. L. S. Martin, C.M. Weaver
Rok vydání:	2018
Předmět:	Physics Scattering Plane (geometry) Momentum transfer chemistry.chemical_element Kinematics Electron 01 natural sciences 010309 optics chemistry 0103 physical sciences Perpendicular Singlet state Atomic physics 010306 general physics Helium
Zdroj:	Physical Review A. 97
ISSN:	2469-9934 2469-9926
DOI:	10.1103/physreva.97.052710
Popis:	Out-of-scattering-plane (e, 2e) measurements and calculations are reported for the three singlet helium 2l2l ′ autoionizing levels, with 80, 100, 120, 150, and 488 eV incident-electron energies, and scattering angles 60◦ , 50.8◦ , 45◦ , 39.2◦ , and 20.5◦ , respectively. The kinematics are the same in all cases: the momentum transfer is K = 2.1 a.u., and ejected electrons are detected in a plane that contains the momentum transfer direction and is perpendicular to the scattering plane. The results are presented as (e, 2e) angular distributions energy-integrated over each level. They are compared with fully nonperturbative B-spline R-matrix and hybrid second-order distorted-wave + R-matrix calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a012a27417995fcc5a5c382dcc9bcda https://doi.org/10.1103/physreva.97.052710 Zobrazit plný text záznamu