Understanding penta quark with various quark models
arXiv:hep-ph/0408176 · doi:10.1016/j.physletb.2004.10.008
Abstract
The pentaquark state recently discovered has been studied with three quark models which either fit the nucleon spin structure or the scattering. A minimum mass of 1620 MeV is obtained both for the state. The mixing of various color structure configurations, which would reduce the mass of the penta-quark state, should be taking into account in the calculation of penta-quark mass.
14 pages, 7 figures