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Berlin 2005 – wissenschaftliches Programm

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MO: Molekülphysik

MO 11: Photoionisation

MO 11.4: Fachvortrag

Freitag, 4. März 2005, 11:30–11:45, HU 3075

Vector correlations in atomic and molecular photoionization beyond the dipole approximation — •Alexei Grum-Grzhimailo — Institute of Nuclear Physics, Moscow State University, Moscow 119992, Russia

The theory of photoionization from polarized atoms and molecules has been developed for full multipole expansion of arbitrary polarized radiation in electric and magnetic moments [1,2]. New, experimentally still unobserved, nondipole effects are predicted in the angular distribution of photoelectrons, in the circular and linear dichroism in the angular distribution, in magnetic dichroism, in the angular distribution of molecular dissociative fragments, in the angular correlations between photoelectrons and the fragments (angular distribution from "fixed-in-space" molecules). Features of the nondipole photoionization from chiral molecules and linear molecules will be outlined and compared to the photoionization from polarized atoms.

[1]. A.N.Grum-Grzhimailo, J. Phys. B, 34, L359 (2001). [2]. A.N.Grum-Grzhimailo, J. Phys. B, 36, 2385 (2003).

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