Bonn 2020 – wissenschaftliches Programm
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HK 18.7: Vortrag
Dienstag, 31. März 2020, 18:45–19:00, J-HS H
One-nucleon removal from 14O at 100 MeV/nucleon with a thin hydrogen target — •Thomas Pohl, Yelei Sun, Alexandre Obertelli, and SAMURAI 31 Collaboration — TU Darmstadt, Darmstadt, Germany
Direct reactions at intermediate energies are an important tool for nuclear structure studies, but some reaction mechanisms are still not understood. One debated phenomenon is the asymmetric parallel momentum distribution (PMD) of the residual nucleus occurring occasional in one nucleon removal reactions [1-3]. Recent theoretical calculations of (p,pN) reactions with 14O at 100 MeV/nucleon with the distorted-wave impulse approximation (DWIA) predict a large asymmetric PMD . The low momentum tail is due to the phase volume effect and the high momentum fall off due to the attractive potential of the residues and the outgoing nucleons. Comparison with experimental data is necessary for validation and will be a basis for further spectroscopic factor studies. We performed an experiment with 14O beam at 100 MeV/nucleon impinging on a 2-mm thick solid hydrogen target at RIBF at RIKEN. Momentum of the residues is extracted from the SAMURAI spectrometer. Details of the experiment, the analysis procedure and preliminary results will be presented.
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