TY - JOUR

T1 - Mode-channel interdependence of the vibrational excitations associated with K-shell photoionization of CO2

AU - Krivosenko, Y.S.

AU - Pavlychev, A.A.

PY - 2014

Y1 - 2014

N2 - It is shown that the direction of the photoelectron recoil momentum transferred to the photoion influences molecular photoionization dynamics, resulting in the appearance of a specific mode–channel interdependence. We disclose the interdependence and the interplay of the core-hole- and photoelectron-induced recoil effects by passing to normal mass-dependent modes in both coordinate and momentum spaces. As an example, the vibrational structure of the 1s−1 photoelectron line of CO2 is investigated in detail. The intensity of bending and symmetric and asymmetric stretching vibrational and rotational excitations is found to differ substantially in the Σ→Σ and Σ→Π photoionization channels.

AB - It is shown that the direction of the photoelectron recoil momentum transferred to the photoion influences molecular photoionization dynamics, resulting in the appearance of a specific mode–channel interdependence. We disclose the interdependence and the interplay of the core-hole- and photoelectron-induced recoil effects by passing to normal mass-dependent modes in both coordinate and momentum spaces. As an example, the vibrational structure of the 1s−1 photoelectron line of CO2 is investigated in detail. The intensity of bending and symmetric and asymmetric stretching vibrational and rotational excitations is found to differ substantially in the Σ→Σ and Σ→Π photoionization channels.

U2 - 10.1103/PhysRevA.89.032517

DO - 10.1103/PhysRevA.89.032517

M3 - Article

VL - 89

SP - 032517_1-5

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 3

ER -