SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 42: Structure and Dynamics of Nuclei VIII
HK 42.4: Vortrag
Mittwoch, 22. März 2023, 16:45–17:00, SCH/A215
Search for near-threshold multi-neutron resonances in (p,2p) reactions with neutron-rich nuclei at R3B — •Nikhil Mozumdar1,3, Thomas Aumann1,2,3, Olivier Sorlin4, and Valerii Panin2 for the R3B collaboration — 1Technische Universität Darmstadt — 2GSI Helmholtz-Zentrum für Schwerionenforschung — 3Helmholtz Forschungsakademie Hessen für FAIR — 4Grand Accélérateur National d’Ions Lourds
In order to constrain the largely unknown multi-neutron interactions, it is necessary to measure the relevant observables sensitive to them. In the current work we plan to investigate multi-neutron resonances close to the corresponding neutron removal thresholds in neutron-rich light nuclei. The objective is to search for and characterize the systematic appearance of narrow resonances related to multi-neutron cluster structures and correlations near the respective cluster thresholds, similar to the popular alpha cluster resonant states. For this purpose an experiment has been recently concluded at the R3B Setup in GSI. The (p,2p) reactions are studied in inverse kinematics where a radioactive ion "cocktail" beam is impinged on a 5cm LH2 target. The resulting reaction products are measured using a large combination of detector systems providing information of the full reaction kinematics. Of particular interest is the neutron detector NeuLAND, which thanks to its high resolution and granularity provides access to the detailed study of multi-neutron resonances aimed for in this work.
Supported by HFHF, the GSI-TU Darmstadt cooperation and the BMBF project 05P21RDFN2