Chiral Symmetry of Baryons

Details Chiral Symmetry of Baryons Chiral Symmetry of Baryons

2001-09-29

arxiv.org/abs/hep-ph/0110005v1

Prog.Theor.Phys.106:873-908,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

36 pages, To appear in Prog. Theor. Phys

Scientific paper

10.1143/PTP.106.873

We study chiral symmetry aspects of the positive and negative parity baryons by identifying them with linear representations of the chiral group $SU(N_{f}) \otimes SU(N_{f})$. It is shown that there are two distinctive schemes: naive and mirror assignments. We construct linear sigma models for baryons in the two assignments and examine their physical implications. Then we investigate properties of the naive and mirror nucleons microscopically by using QCD interpolating fields. Finally, we propose experiments to distinguish the two chiral assignments for the nucleon.

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