Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 31: Structure and Dynamics of Nuclei IV

HK 31.6: Vortrag

Mittwoch, 29. März 2017, 18:00–18:15, F 2

The investigation of quasi-free scattering reactions with the two-proton-halo nucleus ¹⁷Ne — •Christopher Lehr¹, Thomas Aumann¹, Felix Wamers², and Justyna Marganiec¹ for the R3B collaboration — ¹TU Darmstadt — ²GSI Helmholtzzentrum

¹⁷Ne is a Borromean two-proton-halo nucleus located at the proton-dripline and therefore an interesting candidate for nuclear-structure studies.

Reactions of the nucleus ¹⁷Ne have been measured in complete kinematics at the R3B/LAND setup at GSI in Darmstadt. The experimental method is based on exclusive measurements of one-proton-removal reactions. Polyethylene (CH₂) and carbon (C) were used as targets. Thus it is possible to reconstruct the pure hydrogen (H) contribution of the CH₂ data by subtracting the carbon background.

The resulting events are clean quasi-free-scattering (p,2p) reactions showing the typical angular correlations known from p-p scattering. Thereby quasi-free (p,2p) and carbon-induced one-proton removal reactions are studied separately.

Quasi-free-scattering reactions are compared with carbon-induced one-proton removal reactions and shown to be a clean tool for nuclear-structure studies.

This work is supported by HIC for FAIR, the GSI-TU Darmstadt cooperation and the BMBF project 05P15RDFN1.