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arXiv · hep-ph/0004113

Magnetic Catalysis in the Presence of Scalar Fields

E. J. Ferrer·V. de la Incera
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Abstract

The influence of scalar field interactions in the magnetic catalysis phenomenom is studied in a gauge theory with scalar and fermion fields. It is shown that the external magnetic field catalyzes the appearance of a fermion-antifermion condensate along with a non-zero scalar vev, hence generating a fermion dynamical mass and breaking the discrete chiral symmetry of the theory. The model does not require the introduction of a scalar mass term with a wrong sign in the original Lagrangian to generate the scalar vev, nor does it exhibit dimensional transmutation ''a la Coleman-Weinberg.'' The scalar vev noticeably enhances the dynamically generated fermion mass. Possible cosmological applications of these results are suggested.

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E. J. Ferrer, V. de la Incera. 2000-04-12. Magnetic Catalysis in the Presence of Scalar Fields. https://doi.org/10.1016/s0370-2693(00)00482-2

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