Insight into the Scalar Mesons from a Lattice Calculation
High Energy Physics - Lattice
2008-11-26 v1 High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We study the possibility that the light scalar mesons are (qbar qbar q q) states rather than (qbar q). We perform a lattice QCD calculation of pseudoscalar meson scattering amplitudes, ignoring quark loops and quark annihilation, and find indications that for sufficiently heavy quarks there is a stable four-quark bound state with J^{PC}=0^{++} and non-exotic flavor quantum numbers.
Cite
@article{arxiv.hep-lat/0001023,
title = {Insight into the Scalar Mesons from a Lattice Calculation},
author = {Mark Alford and R. L. Jaffe},
journal= {arXiv preprint arXiv:hep-lat/0001023},
year = {2008}
}
Comments
16 pages, revtex, with eps figures