Bochum 2018 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 24: Structure and Dynamics of Nuclei IV
HK 24.1: Gruppenbericht
Dienstag, 27. Februar 2018, 16:30–17:00, HZO 70
NeuLAND Demonstrator at SAMURAI – Neutron Detection in Experiments with Radioactive Beams — •Julian Kahlbow1, Thomas Aumann1,2, Konstanze Boretzky2, Igor Gasparic3,2, Yosuke Kondo4, Stefanos Paschalis1,5, Dominic Rossi1,2, Fabia Schindler1, Haik Simon2, and Hans Törnqvist1,2 for the NeuLAND-SAMURAI collaboration — 1TU Darmstadt — 2GSI, Darmstadt — 3RBI, Zagreb — 4TITech, Tokyo — 5U of York
NeuLAND is the new high-resolution neutron time-of-flight spectrometer under construction for the R3B setup at FAIR. After the completion of the NeuLAND demonstrator in 2015, it was sent to the RI Beam Factory in Japan to be integrated into the neutron detection system NEBULA at the SAMURAI setup. SAMURAI is an experimental setup designed for experiments with radioactive ion beams in complete kinematics. During the 2-year stay, a variety of experiments requiring (multi-)neutron detection was performed with NeuLAND as one of the key detectors. It became possible for the first time to study reactions with up to 4 coincident neutrons in the exit channel and to determine their momenta. The report will highlight experiments such as the spectroscopy of the 4-/3-neutron-unbound systems 28O & 27O. Furthermore, the search for a resonant tetraneutron system will be discussed as well as other experiments to show the unique capabilities of this setup.
This work is supported by the DFG through grant no. SFB 1245, the BMBF under contract no. 05P15RDFN1, and the GSI-TU Darmstadt cooperation agreement.