Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Struktur und Dynamik von Kernen

HK 48.3: Vortrag

Donnerstag, 20. März 2014, 17:30–17:45, HZ 4

The Two-Proton Halo Nucleus ¹⁷Ne Studied in High-Energy Nuclear Breakup Reactions — •Felix Wamers^1,2,3,4, Justyna Marganiec^3,1,4, Thomas Aumann^3,4, Carlos Bertulani⁵, Leonid Chulkov^4,6, Michael Heil⁴, Ralf Plag^4,7, Deniz Savran^1,2, and Haik Simon⁴ for the R3B collaboration — ¹EMMI, GSI, Darmstadt, Germany — ²FIAS, Frankfurt, Germany — ³IKP, TU Darmstadt, Darmstadt, Germany — ⁴GSI, Darmstadt, Germany — ⁵Texas A&M University-Commerce, Commerce, USA — ⁶NRC Kurchatov Institute, Moscow, Russian Federation — ⁷Goethe Universität, Frankfurt, Germany

We report on exclusive measurements of nuclear breakup reactions of highly-energetic (500 MeV) unstable ¹⁷Ne beams impinging on light targets in an experiment at the R³B-LAND complete-kinematics reaction setup at GSI. Focusing on the properties of beam-like ¹⁵O-p (= ¹⁶F) systems produced in one-proton-removal reactions, we are presenting a comprehensive analysis of the s-/d-wave configuration mixing of the ¹⁷Ne valence-proton pair that is used to quantify its halo-nature. The results include the ¹⁵O-p relative-energy spectrum, ¹⁶F momentum distributions, and their corresponding momentum profile.

This work was supported by the Alliance Program of the Helmholtz Association (HA216/EMMI), by NAVI, by the German Federal Ministry for Education and Research (BMBF) (project 05P12RDFN8), by HIC for FAIR, by Eurons (European Commission contract no. 506065), and by the GSI-TU Darmstadt cooperation.