Abstract

We study the baryon properties in the chiral bag plus skyrmion hybrid model. To describe the physical baryon state, we apply the generator coordinate projection method (GCM) instead of the widely used semiclassical collective coordinate method (CCM). The intrinsic state for the skyrmion is constructed as the coherent state and the valence quarks are treated explicitly. The nucleon and delta masses and the axial coupling constant g A are investigated. Tha masses are significantly reduced from the large hedgehog mass due to the quantum effects in the GCM and a small g A in the CCM is enhanced as a result of finite N c. Agreement with experimental data of these quantities is much improved compared to the semiclassical CCM.

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