Using a new method recently proposed by the HAL QCD collaboration to study hadron interactions in lattice QCD, we investigate a possibility for an existence of the H-dibaryon in the flavor SU(3) symmetric world. A potential for the flavor-singlet baryon-baryon channel is derived from the Nambu-Bethe-Salpeter wave function, and the elusive H-dibaryon is shown to be a bound state, with the binding energy of 20--50 MeV for the pseudo-scalar meson masses in the range that 469--1171 MeV.
@article{arxiv.1111.5098,
title = {Bound H-dibaryon from Full QCD Simulations on the Lattice},
author = {Takashi Inoue and for HAL QCD Collaboration},
journal= {arXiv preprint arXiv:1111.5098},
year = {2011}
}
Comments
7 pages, 3 figures, Talk presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2011, Squaw Valley, Lake Tahoe, California, USA