Bonn 2010 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 20: Struktur und Dynamik von Kernen IV
HK 20.3: Talk
Tuesday, March 16, 2010, 14:45–15:00, HG VII
Three-body bound states in finite volume with EFT — •Simon Kreuzer1,2 and Hans-Werner Hammer1,2 — 1Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn — 2Bethe Center for Theoretical Physics, Universität Bonn
Three particles with large scattering length display a universal spectrum of three-body bound states called Efimov trimers”. We calculate the modification of the Efimov trimers of three identical bosons in a finite cubic box and compute the dependence of their energies on the box size using effective field theory. The renormalization of the effective field theory in the finite volume is explicitly verified. We investigate the effects of partial wave mixing and study the behavior of shallow trimers near the dimer energy. Finally, we will present first results for the triton in a finite volume.