München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 12: Structure and Dynamics of Nuclei II
HK 12.1: Vortrag
Montag, 18. März 2019, 16:30–16:45, HS 14
Investigation of the Dineutron System via Quasi-Free 4He-Knockout Reactions at 6He — •Marco Knösel1, Thomas Aumann1,2, Christopher Lehr1, and Vadim Wagner1 for the NeuLAND-SAMURAI collaboration — 1Technische Universität Darmstadt — 2GSI Helmholtz-Zentrum für Schwerionenforschung
In this contribution, a status update on the analysis of a 6He(p,pα)2n experiment in inverse kinematics is given. In order to study the neutron-neutron interaction, a high-energy radioactive 6He beam has been directed to a thick liquid hydrogen target, where the alpha particle is removed in a fast quasi-free knockout reaction. The shape of the two-neutron relative energy spectrum thereby is sensitive to the neutron-neutron scattering length. To calculate the distribution of relative energies, the invariant mass of the two-neutron system is measured. The experiment was performed at the SAMURAI setup at RIKEN using the NeuLAND demonstrator (of the R3B setup at GSI/FAIR) and NEBULA as neutron detectors.
This work is supported by the DFG through grant no. SFB 1245, the BMBF under contract number 05P15RDFN1 and the GSI-TU Darmstadt cooperation agreement.