Abstract
The six quark state(uuddss) called H dibaryon(JP = 0+,S = -2) has been calculated to study its existence and stability. The simulations are performed in quenched QCD on 83 × 24 and 163 × 48 anisotropic lattices with Symanzik improved gauge action and Clover fermion action. The gauge coupling is β = 2.0 and aspect ratio ξ = as/at = 3.0. Preliminary results indicate that mass of H dibaryon is 2134(100)Mev on 83 × 24 lattice and 2167(59)Mev on 163 × 48 respectively. It seems that the radius of H dibaryon is very large and the finite size effect is very obvious.
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