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arXiv · 2503.06972

Novel concept for low-energy antineutron production and its application for antineutron scattering experiments

Alessandra Filippi·Hiroyuki Fujioka·Takashi Higuchi·Luca Venturelli
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Abstract

Extensive data of antiproton scattering cross sections with protons and nuclei have advanced our understanding of hadronic interactions with antinucleons. However, low-energy antineutron scattering data are scarce, thereby limiting our understanding of the S-wave antinucleon-nucleon and antinucleon-nucleus interactions. We present a novel production scheme of extremely low-energy antineutrons that could remedy this situation. This method is based on backward charge-exchange reaction ($p\bar{p}\to n\bar{n}$), and can reach the lowest momentum of 9 MeV/c, which would be well suited to study of the S-wave antinucleon-nucleon or antinucleon-nucleus interactions.

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Alessandra Filippi, Hiroyuki Fujioka, Takashi Higuchi, Luca Venturelli. 2025-03-10. Novel concept for low-energy antineutron production and its application for antineutron scattering experiments. https://arxiv.org/abs/2503.06972

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