SPECTROSCOPIC STUDY OF LITHIUM-LIKE CARBON BY DIELECTRONIC RECOMBINATION OF A STORED ION-BEAM

A detailed spectroscopic study of resonant states in the continuum of lithiumlike carbon has been performed utilizing dielectronic recombina tion at an ion storage ring. All observed resonances have been identif ied and energies have been determined with an accuracy better than 0.1 eV. The measurements have been complemented by accurate calculations using the saddle-point technique. Every resonance of the type 1snln'l' has been determined for n = 2, n' = 2,3).