Lattice Study of the $H$ Dibaryon

Negele, J. W.; Pochinsky, A.; Scarlet, B.

Lattice Study of the $H$ Dibaryon

Authors

Negele, J. W.

Pochinsky, A.

Scarlet, B.

Description

The mass of the lowest spin-zero, strangeness-$(-2)$ flavor singlet state in the dibaryon sector has been calculated in quenched QCD on $16^3\times32$ and $24^3\times32$ lattices at $β=5.85$ to study whether the energy of the proposed $H$ dibaryon is near or below the $ΛΛ$ threshold. Preliminary results indicate that finite lattice volume artifacts overestimate the binding, and that on the largest lattice $m_H$ is of the order of $100\MeV$ above the $ΛΛ$ threshold.
LATTICE98(spectrum) 3 pages, 2 figures