235 research outputs found

    Colour Fields of the Static Pentaquark System Computed in SU(3) Lattice QCD

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    We compute the colour fields of SU(3) lattice QCD created by static pentaquark systems, in a 243×4824^3\times 48 lattice at β=6.2\beta=6.2 corresponding to a lattice spacing a=0.07261(85)a=0.07261(85) fm. We find that the pentaquark colour fields are well described by a multi-Y-type shaped flux tube. The flux tube junction points are compatible with Fermat-Steiner points minimizing the total flux tube length. We also compare the pentaquark flux tube profile with diquark-diantiquark central flux tube profile in the tetraquark and the quark-antiquark fundamental flux tube profile in the meson, and they match, thus showing that the pentaquark flux tubes are composed of fundamental flux tubes.Comment: 7 pages, 6 figures, 2 table
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