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The gluonic excitation of the three-quark system in SU(3) lattice QCD

Toru T. Takahashi·Hideo Suganuma
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Abstract

We present the first study of the gluonic excitation in the three-quark (3Q) system in SU(3) lattice QCD with $β$=5.8 and $16^3 \times 32 $ at the quenched level. For the spatially-fixed 3Q system, we measure the gluonic excited-state potential, which corresponds to the flux-tube vibrational energy in the flux-tube picture. The lowest gluonic-excitation energy in the 3Q system is found to be about 1GeV in the hadronic scale. This large gluonic-excitation energy is expected to bring about the success of the simple quark model without gluonic modes.

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Toru T. Takahashi, Hideo Suganuma. 2002-10-15. The gluonic excitation of the three-quark system in SU(3) lattice QCD. https://doi.org/10.1103/physrevlett.90.182001

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