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arXiv · 0809.2496

Impact of eight-quark interactions in chiral phase transitions I: Secondary magnetic catalysis

A. A. Osipov·B. Hiller·A. H. Blin·J. da Providencia
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Abstract

The influence of a constant magnetic field on the order parameter of the four-dimensional Nambu and Jona-Lasinio model extended by the 't Hooft six-quark term and eight-quark interactions is considered. It is shown that the multi-quark interactions cause the order parameter to increase sharply (secondary magnetic catalysis) with increasing strength of the field at the characteristic scale $H\sim 10^{14}Λ^2$ G/MeV^2.

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A. A. Osipov, B. Hiller, A. H. Blin, J. da Providencia. 2008-09-15. Impact of eight-quark interactions in chiral phase transitions I: Secondary magnetic catalysis. https://arxiv.org/abs/0809.2496

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