Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Nuclear Astrophysics II

HK 11.7: Talk

Monday, March 14, 2016, 18:15–18:30, S1/01 A02

The investigation of quasi-free scatering reactions with the two-proton-halo nucleus ¹⁷Ne — •Christopher Lehr¹, Thomas Aumann¹, Felix Wamers², and Justyna Marganiec¹ — 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. It was studied in exclusive measurements of one-pronton-removal reactions. Polyethylene (CH₂) and carbon (C) were used as targets. Thus it is possible to reconstruct the pure H contribution of the CH₂ data by subtracting the carbon background.

The resulting events are clean (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 separatly.

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.