Quark model with chiral-symmetry breaking and confinement in the Covariant Spectator Theory

We propose a model for the quark-antiquark interaction in Minkowski space using the Covariant Spectator Theory. We show that with an equal-weighted scalar-pseudoscalar structure for the confining part of our interaction kernel the axial-vector Ward-Takahashi identity is preserved and our model compl...

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Detalhes bibliográficos
Autor principal: Biernat, Elmar P. (author)
Outros Autores: Peña, M. T. (author), Ribeiro, J. E. (author), Stadler, Alfred (author), Gross, Franz (author)
Formato: lecture
Idioma:eng
Publicado em: 2017
Assuntos:
Texto completo:http://hdl.handle.net/10174/19977
País:Portugal
Oai:oai:dspace.uevora.pt:10174/19977
Descrição
Resumo:We propose a model for the quark-antiquark interaction in Minkowski space using the Covariant Spectator Theory. We show that with an equal-weighted scalar-pseudoscalar structure for the confining part of our interaction kernel the axial-vector Ward-Takahashi identity is preserved and our model complies with the Adler-zero constraint for π-π-scattering imposed by chiral symmetry.