The Static Penta-quark Potential in Lattice QCD

Details The Static Penta-quark Potential in Lattice QCD The Static Penta-quark Potential in Lattice QCD

2004-10-15

arxiv.org/abs/hep-lat/0410021v1

Physics

High Energy Physics

High Energy Physics - Lattice

Talk given at the International Workshop on PENTAQUARK04, SPring-8, Japan, 20-23 July 2004

Scientific paper

We perform the first study for the static penta-quark (5Q) potential in lattice QCD with $\beta$=6.0 and $16^3 \times 32$ at the quenched level. Accurate results of the 5Q potential are extracted from the 5Q Wilson loop using the smearing method, which enhances the ground-state component. The tetra-quark potential for the $\rm QQ$-$\rm {\bar Q}{\bar Q}$ system is also studied in lattice QCD. The multi-quark potentials are found to be well described as a sum of the one-gluon-exchange Coulomb term and the multi-Y linear confinement term based on the flux-tube picture.

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