Measurements of the reaction cross sections of neutron-rich Sn isotopes at the R3B setup

R3B Collaboration

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A fundamental framework to describe nuclear matter as a function of pressure and nuclear isospin asymmetry is the nuclear Equation of State (EoS). Constraining the parameters of the EoS is one of the central issues in nuclear physics, especially since the slope parameter L has not yet been constrained well experimentally. It has been identified that a precise determination of the neutron-removal cross section in neutron-rich nuclei, which correlates with the neutron-skin thickness, would provide a more precise constraint on L. To this end, an experiment was performed at the R3B setup in the GSI Helmholtzzentrum für Schwerionenforschung GmbH as a part of the FAIR Phase-0 program. The reactions are studied in inverse kinematics with neutron-rich tin isotopes in the mass range of A = 124–134 on carbon targets of different thicknesses. The reaction products have been measured at beam energies of 400–900 MeV/u in a kinematically complete manner. In this communication, the analysis of124Sn+12C at 900 MeV/u is presented. The charge-exchange reactions, resulting processes, and their role in the calculation of other reaction cross sections are discussed.

Original languageEnglish
Article number3-A18
Number of pages7
JournalActa Physica Polonica B, Proceedings Supplement
Issue number3
Publication statusPublished - 24 Apr 2024

Bibliographical note

Funding Information:
The project was supported by the BMBF via Project No. 05P21RDFN2, the Helmholtz Research Academy Hessen for FAIR and the GSI-TU Darm-stadt cooperation.

Publisher Copyright:
© 2024 Jagiellonian University.

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