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arXiv · 1811.08236

A plausible explanation of $\Upsilon(10860)$

Roberto Bruschini·Pedro González
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Abstract

We show that a good description of the $\Upsilon(10860)$ properties, in particular the mass, the $e^+ e^-$ leptonic widths and the $\pi^{+}\pi^{-}\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.

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Roberto Bruschini, Pedro González. 2018-11-20. A plausible explanation of $\Upsilon(10860)$. https://doi.org/10.1016/j.physletb.2019.03.017

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