München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 12: Structure and Dynamics of Nuclei II
HK 12.3: Vortrag
Montag, 18. März 2019, 17:00–17:15, HS 14
Structure of 6He in Halo EFT — •Matthias Göbel1, Daniel R. Phillips2,3, and Hans-Werner Hammer1,3 — 1Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany — 2Institute of Nuclear and Particle Physics and Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA — 3ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
The Borromean two-neutron halo 6He with its scale separations is well suited to a treatment in Halo EFT with the neutrons (n) and the α core as degrees of freedom. The s-wave nn interaction and the 2P3/2 α n interaction as well as a three-body force are employed in our leading order analysis.
Using the Faddeev equations, the leading order results of Ji, Elster and Phillips (see Phys. Rev. C 90 (2014) 044004) for the Faddeev amplitudes are reproduced. Based on these amplitudes, we study the structure of 6He by calculating the momentum space probability density as seen with different spectator particles. Moreover, the results for the nn relative energy distribution will be presented.