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

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

2002-10-15

arxiv.org/abs/hep-lat/0210024v1

Phys.Rev.Lett. 90 (2003) 182001

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.90.182001

We present the first study of the gluonic excitation in the three-quark (3Q) system in SU(3) lattice QCD with $\beta$=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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