Canonical interpretation of the $η_2(1870)$
arXiv:0904.1252 · doi:10.1140/epjc/s10052-009-1106-z
Abstract
We argue that the mass, production, total decay width, and decay pattern of the $η_2(1870)$ do not appear to contradict with the picture of it being the conventional $2 ^1D_2$ $q\bar{q}$ state. The possibility of the $η_2(1870)$ being a mixture of the conventional $q\bar{q}$ and the hybrid is also discussed.
18 pages,4 figures, version accepted by Eur. Phys. J. C