Köln 2025 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 23: Poster

HK 23.3: Poster

Tuesday, March 11, 2025, 17:30–19:00, Foyer Physik

Exploring Few-Body Systems, Nucleon Structure, and More with MAGIX at MESA — •Sören Schlimme for the MAGIX collaboration — Institute for Nuclear Physics, Johannes Gutenberg University Mainz, Germany

The upcoming MAGIX experiment at the MESA accelerator combines a high-intensity electron beam with a windowless gas jet target and high-resolution magnetic spectrometers. This advanced setup enables a broad and innovative experimental program in nuclear, hadron, and particle physics at low energies.

The exceptionally clean experimental environment at MAGIX allows for precise investigations into hadron structure. A key focus is the measurement of proton electromagnetic form factors at low momentum transfers, aimed at addressing the proton charge radius puzzle. In nuclear physics, MAGIX will provide high-precision electron scattering data, particularly on few-body systems, which serve as stringent tests for nuclear dynamics models. These systems are ideal for benchmarking effective field theories at low energies, where theoretical predictions are most reliable. Furthermore, the low-density target allows the detection of nuclear recoil fragments in coincidence with scattered electrons, enabling detailed studies of exclusive reactions. This capability is also crucial for exploring reaction cross sections relevant to nuclear astrophysics, including time-reversed radiative capture reactions. In addition, MAGIX will also contribute to the search for dark matter by performing world-class searches for dark photons, investigating both visible and invisible decay modes.

Keywords: Electron Scattering; Few-Body Systems; Hadron Structure; Time-Reversed Radiative Capture Reactions; Dark Sector Searches