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Flavour symmetry as a Spontaneously Broken Discrete Permutation Symmetry Embedded in Colour

Nils A. Tornqvist
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Abstract

A new mechanism for breaking an internal symmetry spontaneously is discussed, which is intermediate between the Nambu-Goldstone and Wigner modes of symmetry breaking. Here the quark-antiquark sea takes the role of the vacuum of the Nambu-Goldstone case. Flavour symmetry becomes a discrete permutation symmetry of the valence quarks with respect to the sea quarks, which can be spontaneously broken without generation of massless Goldstone bosons.

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Nils A. Tornqvist. 1999-08-23. Flavour symmetry as a Spontaneously Broken Discrete Permutation Symmetry Embedded in Colour. https://arxiv.org/abs/hep-ph/9908434

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