Lattice QCD Study for Confinement and Hadrons
| dc.creator | Suganuma, Hideo | |
| dc.creator | Ichie, Hiroko | |
| dc.creator | Okiharu, Fumiko | |
| dc.creator | Takahashi, Toru T. | |
| dc.date | 2005-08-01 | |
| dc.date.accessioned | 2026-07-07T11:26:37Z | |
| dc.date.available | 2026-07-07T11:26:37Z | |
| dc.description | Using SU(3) lattice QCD, we perform the detailed studies of the three-quark and the multi-quark potentials. From the accurate calculation for more than 300 different patterns of 3Q systems, the static ground-state 3Q potential $V_{\rm 3Q}^{\rm g.s.}$ is found to be well described by the Coulomb plus Y-type linear potential (Y-Ansatz) within 1%-level deviation. As a clear evidence for Y-Ansatz, Y-type flux-tube formation is actually observed on the lattice in maximally-Abelian projected QCD. For about 100 patterns of 3Q systems, we perform the accurate calculation for the 1st excited-state 3Q potential $V_{\rm 3Q}^{\rm e.s.}$ by diagonalizing the QCD Hamiltonian in the presence of three quarks, and find a large gluonic-excitation energy $ΔE_{\rm 3Q} \equiv V_{\rm 3Q}^{\rm e.s.}-V_{\rm 3Q}^{\rm g.s.}$ of about 1 GeV, which gives a physical reason of the success of the quark model. $ΔE_{\rm 3Q}$ is found to be reproduced by the ``inverse Mercedes Ansatz'', which indicates a complicated bulk excitation for the gluonic-excitation mode. We study also the tetra-quark and the penta-quark potentials in lattice QCD, and find that they are well described by the OGE Coulomb plus multi-Y type linear potential, which supports the flux-tube picture even for the multi-quarks. | |
| dc.description | Invited talk at Int. Conf. on "High Energy and Mathematical Physics" Cadi Ayyad Univ. Marrakech, Morocco, April 4-7, 2005 (Moroccan Publisher) 13 pages | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0508001 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0508001 | |
| dc.identifier | Afr.J.Math.Phys.3:11-20,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/195884 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Lattice QCD Study for Confinement and Hadrons | |
| dc.type | text |