Aufsatz in einer Fachzeitschrift
Theoretical description of dissociative γ → 2γ' scattering in diatomic molecules
Details zur Publikation
Autor(inn)en: | Jänkälä, K.; Demekhin, P.; Heinäsmäki, S.; Haar, I.; Hentges, R.; Ehresmann, A. |
Publikationsjahr: | 2010 |
Zeitschrift: | Journal of Physics B: Atomic, Molecular and Optical Physics |
Seitenbereich: | 065104 |
Jahrgang/Band : | 43 |
ISSN: | 0953-4075 |
Zusammenfassung, Abstract
The paper describes the theoretical formulation of dissociative γ → 2γ' scattering in fixed-in-space and randomly oriented diatomic molecules in the dipole approximation for excitation and 2γ' production. Based on perturbation theory the double-differential cross section and the two-photon angular correlation function of the process is derived. The developed theory is applied to study the angular correlation function of the two Lyman-α photons produced via decay of the doubly excited Q21Πu(1) state of the H2 molecule.
The paper describes the theoretical formulation of dissociative γ → 2γ' scattering in fixed-in-space and randomly oriented diatomic molecules in the dipole approximation for excitation and 2γ' production. Based on perturbation theory the double-differential cross section and the two-photon angular correlation function of the process is derived. The developed theory is applied to study the angular correlation function of the two Lyman-α photons produced via decay of the doubly excited Q21Πu(1) state of the H2 molecule.
