Bound H Dibaryon in Flavor SU(3) Limit of Lattice QCD
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 Nf=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 pseudoscalar meson mass of 673–1015 MeV.
- Physical review letters
Physical review letters 106(16), 162002, 2011-04
American Physical Society