Orientifold Planar Equivalence: The Quenched Meson Spectrum
Abstract
A numerical study of Orientifold Planar Equivalence is performed in SU(N) Yang-Mills theories for N=2,3,4,6. Quenched meson masses are extracted in the antisymmetric, symmetric and adjoint representations for the pseudoscalar and vector channels. An extrapolation of the vector mass as a function of the pseudoscalar mass to the large-N limit shows that the numerical results agree within errors for the three theories, as predicted by Orientifold Planar Equivalence. As a byproduct of the extrapolation, the size of the corrections up to O(1/N^3) are evaluated. A crucial prerequisite for the extrapolation is the determination of an analytical relationship between the corrections in the symmetric and in the antisymmetric representations, order by order in a 1/N expansion.
Keywords
Cite
@article{arxiv.1010.6053,
title = {Orientifold Planar Equivalence: The Quenched Meson Spectrum},
author = {Biagio Lucini and Gregory Moraitis and Agostino Patella and Antonio Rago},
journal= {arXiv preprint arXiv:1010.6053},
year = {2011}
}
Comments
7 pages, 5 figures. Talk given by B. Lucini at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), Villasimius, Italy, June 2010