Spectrum of orientifold QCD in the strong coupling and hopping expansion approximation
High Energy Physics - Lattice
2014-11-20 v1 High Energy Physics - Theory
Abstract
We use the strong coupling and hopping parameter expansions to calculate the pion and rho meson masses for lattice Yang-Mills gauge theories with fermions in irreducible two-index representations, namely the adjoint, symmetric and antisymmetric. The results are found to be consistent with orientifold planar equivalence, and leading order 1/N corrections are calculated in the lattice phase. An estimate of the critical bare mass, for which the pion is massless, is obtained as a function of the bare coupling. A comparison to data from the two-flavour SU(2) theory with adjoint fermions gives evidence for a bulk phase transition at beta~2, separating a pure lattice phase from a phase smoothly connected to the continuum.
Keywords
Cite
@article{arxiv.0911.5111,
title = {Spectrum of orientifold QCD in the strong coupling and hopping expansion approximation},
author = {Gregory Moraitis},
journal= {arXiv preprint arXiv:0911.5111},
year = {2014}
}
Comments
16 pages