Add to ORKGWe report on a novel technique which exploits Radiative Recombination transitions for a direct experimental determination of the two-electron contributions to the ground state energy in heliumlike high-Z ions. Results are presented of a first experiment which was conducted at an electron beam ion trap for various elements ranging from Z=32 to 83. The comparison with theoretical predictions demonstrates that the achieved precision already provides a sensitive test of second order manybody contributions and approaches the size of the two-electron (screened) Lamb shift. The ptoential of the new technique will be outlined and the capability of the ESR storage ring for future investigations will be emphasized. (orig.)17 refs.Available from TIB H...
Precision experimental tests in high Z atoms have important implications for current theories of qua...
Sharp resonant structures in the cross section of the atomic electron-ion collision process of diele...
This work aims to provide insight on Bound-State Quantum-Electrodynamics (BSQED) by experimental fu...
Radiative recombination transitions into the ground state of cooled bare and hydrogen-like uranium i...
The heavy-ion storage ring ESR and the trap for highly-charged ions Super-EBIT open up unique possib...
This paper reports results from an experimental investigation of the dissociative recombination (DR)...
The Lyman #alpha# transitions of hydrogen-like uranium associated with electron capture were measure...
The electron beam ion trap (EBIT) at LLNL is a unique device designed to measure the interactions of...
We designed a crossed beam apparatus, the new aspect of which is that an atomic beam is subsequently...
This is a report about a novel experiment on double excitation of Helium by absorption of synchrotro...
The Lyman-#alpha# transitions of hydrogenlike uranium associated with electron capture were measured...
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
In recent years, radiative electron capture REC in high energy ion atom collisions from a low Z t...
A Johann geometry crystal spectrometer, featuring a four-bar crystal bender and CCD detection, has b...
During the course of this thesis a control system based on EPICS was developed for the Heidelberg el...
Precision experimental tests in high Z atoms have important implications for current theories of qua...
Sharp resonant structures in the cross section of the atomic electron-ion collision process of diele...
This work aims to provide insight on Bound-State Quantum-Electrodynamics (BSQED) by experimental fu...
Radiative recombination transitions into the ground state of cooled bare and hydrogen-like uranium i...
The heavy-ion storage ring ESR and the trap for highly-charged ions Super-EBIT open up unique possib...
This paper reports results from an experimental investigation of the dissociative recombination (DR)...
The Lyman #alpha# transitions of hydrogen-like uranium associated with electron capture were measure...
The electron beam ion trap (EBIT) at LLNL is a unique device designed to measure the interactions of...
We designed a crossed beam apparatus, the new aspect of which is that an atomic beam is subsequently...
This is a report about a novel experiment on double excitation of Helium by absorption of synchrotro...
The Lyman-#alpha# transitions of hydrogenlike uranium associated with electron capture were measured...
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
In recent years, radiative electron capture REC in high energy ion atom collisions from a low Z t...
A Johann geometry crystal spectrometer, featuring a four-bar crystal bender and CCD detection, has b...
During the course of this thesis a control system based on EPICS was developed for the Heidelberg el...
Precision experimental tests in high Z atoms have important implications for current theories of qua...
Sharp resonant structures in the cross section of the atomic electron-ion collision process of diele...
This work aims to provide insight on Bound-State Quantum-Electrodynamics (BSQED) by experimental fu...