Time correlation functions of a hybrid exotic meson operator, with JPC=1-+, generated in quenched lattice QCD are subjected to a (Bayesian) maximum entropy analysis. Five distinct spectral levels are uncovered. Their extrapolation into the physical pion mass region suggests a possible relationship to experimentally known states pi1(1400) and pi1(1600), and also to a state in the 2 GeV region carrying the same quantum numbers.
@article{arxiv.hep-lat/0609010,
title = {Mass spectrum of 1-+ exotic mesons from lattice QCD},
author = {M. S. Cook and H. R. Fiebig},
journal= {arXiv preprint arXiv:hep-lat/0609010},
year = {2014}
}