On tetraquark meson states
arXiv:hep-ph/0407289 · doi:10.1142/S0217751X05025437
Abstract
It is suggested that the narrow meson state seen in the the SELEX experiment is a tetraquark state. Characteristics of other possible tetraquarks formed out of and quarks and antiquarks are considered.
6 pages, LaTeX 2e, major changes in pages 2 and 3, new references added