Heavy ion storage ring without linear dispersion

Precise Atomic Lifetimes Measured at a Heavy-Ion Storage Ring

A new experimental technique, derived from beam-foil spectroscopy, has been developed for the measurement of long atomic lifetimes in ions. The ions are produced in a standard ion source and then, after a first acceleration step, collisionally excited in the gas or foil stripper of an accelerator. A beam of charge-state selected MeV-ions is transported to and then stored in the clean ultra-high...

Astrochemistry in an Ion Storage Ring

Storage ring studies of low energy electron collisions with molecular ions have been carried out for dissociative recombination (DR) of fluorine-bearing molecules. Here we report on work aiming to improve the understanding of astrochemistry involving HF, a possible spectroscopic tracer of interstellar H2. For CF + the rate coefficient was obtained for temperatures down to 10 K. For D2F + the DR...

Dielectronic recombination of berylliumlike Si ions at the heavy-ion storage ring TSR

Electron impact ionization measurements at the Heidelberg heavy ion storage ring TSR

Kaon dispersion relation and flow in relativistic heavy-ion collisions.

Within the framework of a relativistic transport model (ART) for heavy-ion collisions at AGS energies, we examine the effects of kaon dispersion relation on the transverse flow of kaons and their transverse momentum and azimuthal angle distributions. We find that the transverse flow is the most sensitive observable for studying the kaon dispersion relation in dense medium.