Would a Deeply Bound $b\bar b b\bar b$ Tetraquark Meson be Observed at the LHC?

Understand

There has been much theoretical speculation about the existence of a deeply bounded tetra-bottom state.

• Such a state would not be expected to be more than a GeV below $\Upsilon\Upsilon$ threshold.
• If such a state exists below the $\eta_b\eta_b$ threshold it would be narrow, as Zweig allowed strong decays are kinematically forbidden.
• Given the observation of $\Upsilon$ pair production at CMS, such a state with a large branching fraction into $\Upsilon \Upsilon^*$ is likely discoverable at the LHC.