Emmanouilidou, A;
Wang, PJ;
Rost, JM;
(2008)
Initial state dependence in multielectron threshold ionization of atoms.
PHYS REV LETT
, 100
(6)
, Article 063002. 10.1103/PhysRevLett.100.063002.
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Abstract
It is shown that the geometry of multielectron threshold ionization in atoms depends on the initial configuration of bound electrons. The reason for this behavior is found in the stability properties of the classical fixed point of the equations of motion for multiple threshold fragmentation. Specifically for three-electron breakup, apart from the symmetric triangular configuration also a breakup of lower symmetry in the form of a inverted perpendicular shape can occur, as we demonstrate by calculating triple photoionization for the lithium ground and first excited states. We predict the electron breakup geometry for threshold fragmentation experiments.
| Type: | Article |
|---|---|
| Title: | Initial state dependence in multielectron threshold ionization of atoms |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.100.063002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.100.063002 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | DIFFERENTIAL CROSS-SECTIONS, TRIPLE PHOTOIONIZATION, COLLISIONS, PARTICLES, LITHIUM, BREAKUP, HELIUM, ESCAPE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/151904 |
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