A plausible explanation of $Υ(10860)$

Abstract: We show that a good description of the $\Upsilon(10860)$ properties, in particular the mass, the $e⁺ e<sup>-$ leptonic widths and the $\pi<sup>{+}\pi<sup>{-}\Upsilon(ns)$\ (n=1,2,3)$$production rates, can be obtained under the assumption that$$\Upsilon(10860)$is a mixing of the conventional$\Upsilon(5s)$quark model state with the lowest$P-$ wave hybrid state.