Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 26: Structure and Dynamics of Nuclei V

HK 26.5: Vortrag

Mittwoch, 1. April 2020, 15:15–15:30, J-HS E

Structure of the first 2 state in 88Br — •Felix Dunkel1, Jean-Marc Régis1, Ulli Köster2, Yung Hee Kim2, Waldemar Urban3, Jan Jolie1, Arwin Esmaylzadeh1, Lisa Marie Gerhard1, Lukas Knafla1, Mario Ley1, and Kerstin Schomacker11Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany — 2Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France — 3Faculty of Physics, University of Warsaw, ul.Pasteura 5, PL-02-093 Warsaw, Poland

The structure of the first 2 state in 88Br was studied at the Institut Laue-Langevin by measuring the lifetime of this level with the gamma-gamma fast-timing technique using a setup with four LaBr3(Ce) detectors. For this purpose an isomeric 88mBr beam was produced by thermal-neutron induced fission of 235U and mass separated using LOHENGRIN. A highly accurate lifetime result together with deduced transition strengths will be presented and discussed in the context of the shell model and possible collective effects in 88Br.

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