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Gießen 2024 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 15: Structure and Dynamics of Nuclei IV

HK 15.4: Vortrag

Dienstag, 12. März 2024, 16:45–17:00, HBR 14: HS 4

Measurements of the reaction cross sections of neutron-rich Sn isotopes at the R3B setup. — •Eleonora Kudaibergenova1, Ivana Lihtar2, Martina Feijoo-Fontán3, Thomas Aumann1,4,5, Igor Gašparić2, Andrea Horvat1,2, Valerii Panin4, José Luis Rodríguez-Sánchez6, and Dominic Rossi1,4 for the R3B collaboration — 1Institut für Kernphysik, TU Darmstadt, Germany — 2RBI, Zagreb, Croatia — 3IGFAE, Universidad de Santiago de Compostela, Spain — 4GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 5Helmholtz Forschungsakademie HFHF — 6CITENI, Universidade da Coruña, Spain

Constraining the parameters of the nuclear Equation of State (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 at GSI 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 A=124–134 on carbon targets of different thicknesses. In this communication the charge-changing and charge-exchange analysis of 124Sn+12C at 900 MeV/u is presented.

The project was supported by the BMBF via Project No. 05P21RDFN2, the Helmholtz Research Academy Hessen for FAIR and the GSI-TU Darmstadt cooperation agreement.

Keywords: nuclear equation of state; reaction cross section; symmetry energy; neutron skin; FAIR Phase-0

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