H-Dibaryon from Lattice QCD with Improved Anisotropic Actions

Understand

The six quark state(uuddss) called H dibaryon($J^P=0^+$,$S=-2$) has been calculated to study its existence and stability.

• The simulations are performed in quenched QCD on $8^3 \times 24$ and $16^3 \times 48$ anisotropic lattices with Symanzik improved gauge action and Clover fermion action.
• The gauge coupling is $\beta=2.0$ and aspect ratio $\xi=a_s/a_t=3.0$.
• Preliminary results indicate that mass of H dibaryon is 2134(100)Mev on $8^3 \times 24$ lattice and 2167(59)Mev on $16^3 \times 48$ respectively.