Baryon Exotics in the Quark Model, the Skyrme Model and QCD

Details Baryon Exotics in the Quark Model, the Skyrme Model and QCD Baryon Exotics in the Quark Model, the Skyrme Model and QCD

2004-01-26

arxiv.org/abs/hep-ph/0401190v1

Phys.Rev.Lett.93:022001,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevLett.93.022001

We identify the quantum numbers of baryon exotics in the Quark Model, the Skyrme Model and QCD, and show that they agree for arbitrary colors and flavors. We define exoticness, E, which can be used to classify the states. The exotic baryons include the recently discovered qqqq qbar pentaquarks (E=1), as well as exotic baryons with additional q qbar pairs (E >=1). The mass formula for non-exotic and exotic baryons is given as an expansion in 1/N, and allows one to relate the moment of inertia of the Skyrme soliton to the mass of a constituent quark.

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