https://doi.org/10.1051/epjconf/202227102011
Exploring the neutron skin by hyperon–antihyperon production in antiproton–nucleus interactions
1 Helmholtz Institute Mainz, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Johannes Gutenberg University, 55099 Mainz, Germany
2 Institute for Nuclear Physics, Johannes Gutenberg University, 55099 Mainz, Germany
* e-mail: pochodza@uni-mainz.de
Published online: 9 November 2022
In this work we propose a new method to measure the evolution of the neutron skin thickness between different isotopes. We consider antiproton–nucleus interactions close to the production threshold of ΛΛ̅ and Σ− Λ̅ pairs. At low energies, ΛΛ̅ pairs are produced in p̅ + p collisions, while Σ−Λ̅ pairs can only be produced in p̅ + n interactions. Measuring these cross sections provides information on the neutron skin thickness.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
