Different escape modes in two-photon double ionization of helium
Atomic Physics
2026-03-03 v1 Accelerator Physics
Abstract
The quadrupole channel of two-photon double ionization of He exhibits two distinctly different modes of correlated motion of the photoelectron pair. The mode associated with the center-of-mass motion favors a large total momentum which is maximazed at a parallel emission. However, the mode associated with the relative motion favors an antiparallel emission. This difference is manifested in a profoundly different width of the angular correlation functions corresponding to the center-of-mass and relative motion modes.
Keywords
Cite
@article{arxiv.physics/0608028,
title = {Different escape modes in two-photon double ionization of helium},
author = {A. S. Kheifets and I. A. Ivanov and Igor Bray},
journal= {arXiv preprint arXiv:physics/0608028},
year = {2026}
}
Comments
4 pages, 3 figures