Contrasting single to double-particle transition probabilities
induced by a one-particle perturbation yields information on the
strength of (two-particle) correlation in a system. In this contribution we present the first calculations for the single and double ionization probabilities for a C60 molecule
upon the absorption of a single photon. The treatment is based on the
Hartree-Fock and the frozen-core approximations for
single-particle states and on the random-phase approximation for
dealing with the screened Coulomb interaction. Energy and angular
dependencies of total and differential cross sections are analyzed and the signature of the geometry of the fullerene and its charge-density response are pointed out. Furthermore, a scheme is presented for the evaluation of photo-induced many electron emission [1].
[1] O. Kidun, N. Fominykh, J. Berakdar, J.Phys.B 37 L321-L328 (2004).