Nontriviality of the Linear Sigma Model

Details Nontriviality of the Linear Sigma Model Nontriviality of the Linear Sigma Model

1998-12-18

arxiv.org/abs/hep-ph/9812424v1

Eur.Phys.J.C8:527-532,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

To be published in Eur. Phys. J. C

Scientific paper

10.1007/s100529901099

We consider techniques (based on an ultraviolet cutoff) used to prove that
the pure boson ($\phi^4)_4$ field theory is trivial and apply them instead to
the dynamically generated quark-level linear sigma model. This cutoff approach
leads to the conclusion that the latter field theory is in fact nontrivial.

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