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HK: Fachverband Physik der Hadronen und Kerne
HK 49: Structure and Dynamics of Nuclei IX
HK 49.1: Talk
Wednesday, March 22, 2023, 17:30–17:45, SCH/A118
Measurements of the reaction cross sections of neutron-rich Sn isotopes at R3B setup. — •Eleonora Kudaibergenova1, Thomas Aumann1,2,4, Martina Feijoo Fontan5, Andrea Horvat1,3, Ivana Lihtar3, Valerii Panin2, and Dominic Rossi1,2 for the R3B collaboration — 1Institut für Kernphysik, TU Darmstadt, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 3Rudjer Boskovic Institute, Zagreb, Croatia — 4Helmholtz Forschungsakademie HFHF — 5IGFAE, Universidad de Santiago de Compostela, Spain
The equation of state (EoS) is fundamental for understanding the structure of nuclear matter.The study of asymmetric nuclear matter via properties of neutron-rich nuclei became a current focus of investigation.The asymmetry term of the nuclear EoS is expressed by the symmetry energy at saturation J and its slope L, which has not yet been constrained well experimentally. It has been identified that a precise determination of the neutron removal cross section of neutron-rich nuclei, which is directly related to the neutron skin, would provide a much better constraint on L. To this end, an experiment was performed with the neutron-rich tin isotopes in the mass range A=124-134 on 12C targets at the R3B setup at the GSI/FAIR facility in inverse kinematics with very large acceptance. In this report, the current detector calibration, analysis status is presented.
This project was supported by the BMBF project No. 05P21RDFN2, the Helmholtz Research Academy Hessen for FAIR, and the GSI-TU Darmstadt cooperation.