H-Dibaryon from Lattice QCD with Improved Anisotropic Actions

Abstract

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. It seems that the radius of H dibaryon is very large and the finite size effect is very obvious.

References in corpus (7)

• Efficient glueball simulations on anisotropic lattices
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• Non-Perturbative Improvement of the Anisotropic Wilson QCD Action
• Efficient Hadronic Operators in Lattice Gauge Theory
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Cited by in corpus (9)

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• The Deuteron and Exotic Two-Body Bound States from Lattice QCD
• Lattice QCD study of the $H$ dibaryon using hexaquark and two-baryon interpolators
• Weakly bound $H$ dibaryon from SU(3)-flavor-symmetric QCD
• Present Constraints on the H-dibaryon at the Physical Point from Lattice QCD
• Search for H dibaryon on the lattice
• Critical Behavior of Ferromagnetic Ising Model on Triangular Lattice
• f(2010) in Lattice QCD