The spectrum of lattice QCD with staggered fermions at strong coupling

Details The spectrum of lattice QCD with staggered fermions at strong coupling The spectrum of lattice QCD with staggered fermions at strong coupling

2006-08-21

arxiv.org/abs/hep-lat/0608012v1

Phys.Lett.B645:339-344,2007

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, 3 figures

Scientific paper

10.1016/j.physletb.2006.12.026

Using 4 flavors of staggered fermions at infinite gauge coupling, we compare various analytic results for the hadron spectrum with exact Monte Carlo simulations. Agreement with Ref. \cite{Martin_etal} is very good, at the level of a few percent. Our results give credence to a discrepancy between the baryon mass and the critical chemical potential, for which baryons fill the lattice at zero temperature and infinite gauge coupling. Independent determinations of the latter set it at about 30% less than the baryon mass. One possible explanation is that the nuclear attraction becomes strong at infinite gauge coupling.

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