Three charmonium-like states were studied using lattice QCD. The candidate for X(3872) was found slightly below DD* threshold in the channel with J^PC=1^++ and I=0, where cc as well as DD* and J/ψω interpolating operators were used. A charmonium-like channel with J^PC=1^+- and I=1 was also studied, as the recently discovered Z_c^+(3900) might reside there. Here J/ψπ and DD* scattering states were found, but no candidate for the Z_c^+(3900). We present also preliminary results for the J^PC=0^++ charmonium channel, where cc, DD and J/ψω interpolating operators were used. A candidate for a resonance, chi_c0^', that couples to DD in J^PC=0^++ was found.
@article{arxiv.1310.8127,
title = {Charmonium-like states from scattering on the lattice},
author = {Sasa Prelovsek and Luka Leskovec and Daniel Mohler},
journal= {arXiv preprint arXiv:1310.8127},
year = {2013}
}
Comments
7 pages, 4 figures, talk presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany, corrected reference