Abstract
We examine a model of reduced staggered fermions in three dimensions interacting through an SO (4) invariant four fermion interaction. The model is similar to that considered in a recent paper by Ayyer and Chandrasekharan [1]. We present theoretical arguments and numerical evidence which support the idea that the system develops a mass gap for sufficiently strong four fermi coupling without producing a symmetry breaking fermion bilinear condensate. Massless and massive phases appear to be separated by a continuous phase transition.
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ArXiv ePrint: 1510.04153
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Catterall, S. Fermion mass without symmetry breaking. J. High Energ. Phys. 2016, 121 (2016). https://doi.org/10.1007/JHEP01(2016)121
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DOI: https://doi.org/10.1007/JHEP01(2016)121