A plausible explanation of ${\rm Y}(10860)$

Roberto Bruschini, Pedro González

We show that a good description of the ${\rm Y}(10860)$ properties, in particular the mass, the $e^{+}{e}^{-}$ leptonic widths and the ${\pi }^{+}{\pi }^{-}{\rm Y}(ns)$$(n=1,2,3)$ production rates, can be…