@inproceedings{4b1ea72b5aef4122a96d7e32368150db,
title = "Lattice QCD study for confinement in hadrons",
abstract = "We study three subjects on quark confinement in hadrons in SU(3)c lattice QCD. From the accurate lattice calculation for more than 300 different patterns of three-quark (3Q) systems, we find that the static 3Q potential is well described by Y-Ansatz, i.e., the Coulomb plus Y-type linear potential. We also study the multi-quark (4Q, 5Q) potentials in lattice QCD, and find that they are well described by the one-gluon-exchange (OGE) Coulomb plus string-theoretical linear potential, which supports the infrared string picture even for the multi-quarks. The second subject is a lattice-QCD determination of the relevant gluonic momentum component for confinement. The string tension (confining force) is found to be almost unchanged even after cutting off the high-momentum gluon component above 1.5GeV in the Landau gauge. In fact, quark confinement originates from the low-momentum gluon below about 1.5GeV. Finally, we consider a possible gauge of QCD for the quark potential model, by investigating {"}instantaneous inter-quark potential{"} in generalized Landau gauge, which describes a continuous change from the Landau gauge to the Coulomb gauge.",
keywords = "confinement, lattice QCD, multi-quarks, quark potential model, string picture",
author = "H. Suganuma and T. Iritani and F. Okiharu and Takahashi, \{T. T.\} and A. Yamamoto",
year = "2011",
doi = "10.1063/1.3647373",
language = "English",
isbn = "9780735409521",
series = "AIP Conference Proceedings",
pages = "195--201",
booktitle = "International Conference on the Structure of Baryons, BARYONS'10",
note = "International Conference on the Structure of Baryons, BARYONS'10 ; Conference date: 07-12-2010 Through 11-12-2010",
}