Large N solution of generalized Gross-Neveu model with two coupling constants
High Energy Physics - Theory
2010-01-08 v3 High Energy Physics - Lattice
High Energy Physics - Phenomenology
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.
Cite
@article{arxiv.0909.3714,
title = {Large N solution of generalized Gross-Neveu model with two coupling constants},
author = {Christian Boehmer and Michael Thies},
journal= {arXiv preprint arXiv:0909.3714},
year = {2010}
}
Comments
16 pages, 13 figures; v2: small corrections, improved readability; v3: typos in references corrected