We present lattice results on the scalar Ds meson and comment on the DsJ+(2317) state recently discovered by BaBar and confirmed by CLEO, in view of a series of theoretical claims and counter claims. Lattice predictions in the static limit indicate larger masses than observed for a scalar quark model state. Finite c quark mass corrections seem to further enlarge this discrepancy, in support of a non quark-antiquark-state interpretation of experiment.
@article{arxiv.hep-ph/0305209,
title = {The DsJ(2317): what can the Lattice say?},
author = {Gunnar S Bali},
journal= {arXiv preprint arXiv:hep-ph/0305209},
year = {2008}
}