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arXiv · 0909.3714

Large N solution of generalized Gross-Neveu model with two coupling constants

Christian Boehmer·Michael Thies
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Abstract

The Gross-Neveu model in 1+1 dimensions is generalized to the case of different scalar and pseudoscalar coupling constants. This enables us to interpolate smoothly between the standard massless Gross-Neveu models with either discrete or continuous chiral symmetry. We present the solution of the generalized model in the large N limit including the vacuum, fermion-antifermion scattering and bound states, solitonic baryons with fractional baryon number and the full phase diagram at finite temperature and chemical potential.

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Christian Boehmer, Michael Thies. 2010-01-07. Large N solution of generalized Gross-Neveu model with two coupling constants. https://doi.org/10.1103/physrevd.80.125038

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