München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Structure and Dynamics of Nuclei IX

HK 49.3: Talk

Thursday, March 21, 2019, 14:45–15:00, HS 14

New isomeric state and study of deformation of ²⁰⁰Au — •P.R. John¹, J.J Valiente-Dobon², A. Dai³, D. Mengoni^4,5, V. Modamio^1,6, S. Lunardi^4,5, C. Wheldon⁷, D. Bazzacco⁶, and N. Pietralla¹ — ¹Institut für Kernphysik, Technische Universität Darmstadt, Germany — ²Laboratori Nazionali di Legnaro, Legnaro, Italy — ³School of Physics, Peking University, China — ⁴Dipartimento di Fisica e Astronomia, Universitá di Padova, Italy — ⁵Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Italy — ⁶Department of Physics, University of Oslo, Norway — ⁷School of Physics and Astronomy, University of Birmingham, United Kingdom

The neutron-rich nucleus ²⁰⁰Au is investigated via isomeric decay γ-ray spectroscopy in order to study the evolution of the 5⁺ isomeric states and the shape in the very neutron-rich gold isotopes. Multi-nucleon transfer reactions were used to populate excited states of ²⁰⁰Au and the Advanced Gamma Ray Tracking Array (AGATA) detected the delayed γ-ray transitions. The binary-partner method was applied and the level scheme of ²⁰⁰Au was extended. The results are compared to Total Routhian Surface calculations.