Bound H-dibaryon in Flavor SU(3) Limit of Lattice QCD

Details Bound H-dibaryon in Flavor SU(3) Limit of Lattice QCD Bound H-dibaryon in Flavor SU(3) Limit of Lattice QCD

2010-12-29

arxiv.org/abs/1012.5928v2

Phys.Rev.Lett.106:162002,2011

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 3 figuers, add arguments, results unchanged

Scientific paper

10.1103/PhysRevLett.106.162002

The flavor-singlet H-dibaryon, which has strangeness -2 and baryon number 2, is studied by the approach recently developed for the baryon-baryon interactions in lattice QCD. The flavor-singlet central potential is derived from the spatial and imaginary-time dependence of the Nambu-Bethe-Salpeter wave function measured in N_f=3 full QCD simulations with the lattice size of L = 2, 3, 4 fm. The potential is found to be insensitive to the volume, and it leads to a bound H-dibaryon with the binding energy of 30 - 40 MeV for the pseudo-scalar meson mass of 673 - 1015 MeV.

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