arXiv subjects

P. Indelicato

Publications and source records attributed to P. Indelicato.

57 records · Page 4Linked to original sources

arXiv2000

Coordinate-space approach to the bound-electron self-energy: Self-Energy screening calculation

The self-energy screening correction is evaluated in a model in which the effect of the screening electron is represented as a first-order perturbation of the self energy by an effective potential. The effective potential is the Coulomb potential of the spherically averaged charge density of the screening electron. We evaluate the energy shift due to a $1s_{1/2}$, $2s_{1/2}$, $2p_{1/2}$, or $2p_{3/2}$ electron screening a $1s_{1/2}$, $2s_{1/2}$, $2p_{1/2}$, or $2p_{3/2}$ electron, for nuclear charge Z in the range $5 \le Z\le 92$. A detailed comparison with other calculations is made.

physics.atom-ph↗

arXiv1998

Stark quenching for the $1s^22s2p^3P_0$ level in beryllium-like ions and parity-violating effects

In this paper we present some concepts in heavy ion atomic physics for the extraction of parity violating effects. We investigate the effects of the so-called Stark-quenching, i.e., the fast decay of a meta stable state induced by a Stark field, and the superposition of one- and two-photon transitions in beryllium-like heavy ions. It turns out that the discussed theoretical phenomena for heavy ions with few electrons are beyond the scope of present day experimental possibilities because one has to require beam energies of up to 1 TeV/A, laser intensities of up to $10^{17} {\rm W/cm^2}$ and ion currents of up to $10^{11}$ ions per second in beryllium-like uranium. However, especially the superposition of one- and two-photon transitions is a very interesting phenomenon that could provide the germ of an idea to be applied in a more favorable system.

physics.atom-ph↗

arXiv1996

Prospects for Parity Non-conservation Experiments with Highly Charged Heavy Ions

We discuss the prospects for parity non-conservation experiments with highly charged heavy ions. Energy levels and parity mixing for heavy ions with two to five electrons are calculated. We investigate two-photon-transitions and the possibility to observe interference effects between weak-matrix elements and Stark matrix elements for periodic electric field configurations.

atom-ph↗