Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Structure and Dynamics of Nuclei VIII

HK 49.3: Vortrag

Donnerstag, 30. März 2017, 17:30–17:45, F 33

Effective Field Theory for three-body hypernuclei — •Fabian Hildenbrand and Hans-Werner Hammer — Institut für Kernphysik, TU Darmstadt, 64289 Darmstadt, Germany

We construct a short-range effective field theory with contact interactions for three-body hypernuclei in the strangeness S=−1 sector. An asymptotic analysis is performed in the I=0 and I=1 isospin channels and the corresponding effective Lagrangians are constructed. It turns out that a ΛNN three-body force is required for consistent renormalisation in both channels. We present universal correlations between observables and discuss the possibility of a Λnn bound state in this effective theory.

*This work has been supported by the BMBF under grant 05P15 RDFN1.