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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Structure and Dynamics of Nuclei VIII

HK 40.3: Talk

Wednesday, February 28, 2018, 17:15–17:30, HZO 70

Electric Dipole Response of Neutron Rich Tin Isotopes — •Andrea Horvat1, Thomas Aumann1,2, Philipp Schrock3, Konstanze Boretzky2, Igor Gasparic4, Dominic Rossi1, Dmytro Symochko1, Fabia Schindler1, and Lorenzo Zanetti1 for the R3B collaboration — 1TU Darmstadt, Germany — 2GSI Helmholtzzentrum, Darmstadt, Germany — 3CNS, The University of Tokyo — 4Ruder Boskovic Institute, Zagreb, Croatia

The investigation of the nuclear equation of state (EOS), especially its isovector character, is at present one of the most active fields of pursuit in nuclear physics. It is already well established by various theoretical frameworks that observables related to the electric dipole response of heavy nuclei, such as the dipole polarizability, can be used to put constraints on isovector properties of the EOS.

In order to study the systematics of the E1 response on the neutron-rich side of the tin isotope chain (124−132Sn) via the invariant mass method, a Coulomb excitation experiment has been carried out at the R3B/LAND setup at GSI (Helmholtzzentrum für Schwerionenforschung). The tin isotopes present an interesting case due to the doubly magic 132Sn and the opportunity to compare the results to complementary methods utilizing normal kinematics for the stable isotope 124Sn. The experimental setup, analysis method and current status of the analysis will be presented.

This work is supported by HIC for FAIR, GSI-TU Darmstadt cooperation, NAVI, CSF project SR-ETNo and the BMBF project 05P15RDFN1.

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