Chiral symmetry breaking beyond BCS and theorem on the width of scalars

Details Chiral symmetry breaking beyond BCS and theorem on the width of scalars Chiral symmetry breaking beyond BCS and theorem on the width of scalars

2008-04-29

arxiv.org/abs/0804.4675v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, talk presented at SCADRON 70, Workshop on Scalar Mesons and Related Topics, February 2008, Lisbon

Scientific paper

10.1063/1.2973527

We review chiral symmetry breaking at the BCS level, in the framework of
chiral invariant quark models and in the Schwinger-Dyson formalism. We revisit
the pi mass problem beyond the BCS level. We show a theorem on the masses, on
the widths and on the q qbar content of the scalar mesons sigma and f0.

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