TY - JOUR
T1 - Angular anisotropy parameters for sequential two-photon double ionization of helium
AU - Ivanov, I. A.
AU - Kheifets, A. S.
PY - 2009/2/2
Y1 - 2009/2/2
N2 - We evaluate photoelectron angular anisotropy β parameters for the process of sequential two-photon double electron ionization of helium within the lowest-order time-independent perturbation theory. Our results indicate that for photoelectron energies outside the interval (Eslow, Efast), where Eslow =ω- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.
AB - We evaluate photoelectron angular anisotropy β parameters for the process of sequential two-photon double electron ionization of helium within the lowest-order time-independent perturbation theory. Our results indicate that for photoelectron energies outside the interval (Eslow, Efast), where Eslow =ω- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.
UR - http://www.scopus.com/inward/record.url?scp=61449255954&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.79.023409
DO - 10.1103/PhysRevA.79.023409
M3 - Article
SN - 1050-2947
VL - 79
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023409
ER -