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Chiral quantum baryon

Journal Article · · Phys. Rev. Lett.; (United States)
We show that a classical soliton for the nonlinear Su(2) sigma model in the hedgehog configuration admits a stable solution, when quantized through collective coordinates, which may be identified with the nucleon. The whole approach depends on a single, dimensional, and arbitrary constant. Numerical results seem to converge for the mass and for the right value of the weak axial-vector coupling.
Research Organization:
Centro Brasileiro de Pesquisas Fisicas, Conselho National de Desenvolvimento Cientifico e Tecnologico, 22290 Rio de Janeiro, Brazil
OSTI ID:
6447966
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:13; ISSN PRLTA
Country of Publication:
United States
Language:
English