Nuclear-Reaction Mechanisms Studies at GSI

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One branch of the KR division is devoted to study the mechanisms of nuclear reactions by investigating nucleus-nucleus and proton-nucleus collisions at high energy (200-1500 MeV per nucleon incident energy).

Our experimental approach exploits the GSI high-resolution magnetic spectrometer, the FRagment Separator (FRS).

Using the FRS as a recoil separator, both the production cross-sections and the velocity spectra of all the produced fragments in one reaction can be measured with great accuracy. This key experimental information gives insight into the different reaction mechanisms: spallation, fragmentation, multifragmentation and fission.

Using the FRS as a secondary-beam deliverer, the fission of exotic actinides is studied.

Parallel to the experimental studied, nuclear-reaction models are developed.

Activity connected to technical applications is also carried out.

The work is embadded in a larger international collaboration, named CHARMS (Collaboration for High-Accuracy Experiments on Nuclear Reaction Mechanisms with magnetic Spectrometers).