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arXiv · hep-ph/0408176

Understanding penta quark with various quark models

Jialun Ping·Di Qing·Fan Wang·T. Goldman
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Abstract

The pentaquark state recently discovered has been studied with three quark models which either fit the nucleon spin structure or the $NN$ scattering. A minimum $Θ^+$ mass of 1620 MeV is obtained both for the ${1/2}^\pm$ 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.

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Jialun Ping, Di Qing, Fan Wang, T. Goldman. 2004-08-16. Understanding penta quark with various quark models. https://doi.org/10.1016/j.physletb.2004.10.008

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