Log Triviality in the Nambu -- Jona-Lasinio Model
High Energy Physics - Lattice
2009-10-30 v1
Abstract
Results are presented from a Monte Carlo simulation of the Nambu -- Jona-Lasinio model with SU(2)xSU(2) chiral symmetry and N_f=2 flavors of fermion. We show that fits to the equation of state are sensitive to the shape and extent of the assumed scaling region; the best fits favour a triviality scenario predicted by the large-N_f approximation, in which the scalar degrees of freedom are fermion -- anti-fermion composites with wavefunction renormalisation constant vanishing logarithmically in the continuum limit.
Keywords
Cite
@article{arxiv.hep-lat/9709041,
title = {Log Triviality in the Nambu -- Jona-Lasinio Model},
author = {Simon Hands},
journal= {arXiv preprint arXiv:hep-lat/9709041},
year = {2009}
}
Comments
3 page contribution to proceedings of LAT'97