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HK: Fachverband Physik der Hadronen und Kerne
HK 42: Structure and Dynamics of Nuclei VIII
HK 42.6: Vortrag
Mittwoch, 20. März 2019, 18:00–18:15, HS 14
Looking below the threshold: low energy spectrum for neutron-rich Tin isotopes — •Lorenzo Zanetti1, Thomas Aumann1,2, Philipp Schrock3, Kostanze Boretzky2, Igor Gasparic4, Dominic Rossi1, Dmytro Symochko1, Andrea Horvat1, and Fabia Schindler1 for the R3B collaboration — 1TU Darmstadt — 2GSI Helmholtzzentrum — 3CNS, The University of Tokyo — 4Ruder Boskovic Institute, Zagreb, Croatia
Research on the nuclear equation of state (EOS) is very active: many theoretical frameworks provide a way to put constraint on the EOS’s isovector properties, using observables relating to the electric dipole response of neutron-rich nuclei. One of such observables is the dipole polarizability, αD.
A Coulomb excitation experiment was performed at GSI to investigate the E1 response of neutron-rich isotopes of Tin with the R3B/LAND setup. The data collected during the campaign, especially for 132Sn, can be used to estimate αD, provided a good enough understanding of the gamma deexcitation of the nucleus is reached. We are currently analysing the lower energy (below the neutron separation threshold) part of the gamma spectrum in order to reach such understanding.
This work is supported by HIC for FAIR, GSI-TU Darmstadt cooperation, NAVI, CSF project SR-ETNo and the BMBF project 05P15RDFN1.