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arXiv · hep-ph/9304270

Electromagnetic Production of Quarkonium in $Z^{0}$ decay

Sean Fleming
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Abstract

The decay $Z^{0}\rightarrow Q+ \ell^{+}\ell^{-}$, where $Q$ is a $J^{PC}=1^{--}$ quarkonium state, has a very clean final state, which should make it easy to detect. The branching ratio of this mode is greater than $10^{-6}$ for $ρ$, $ϕ$, and $ψ$, indicating that these processes may be detectable at LEP.

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Sean Fleming. 1993-04-19. Electromagnetic Production of Quarkonium in $Z^{0}$ decay. https://doi.org/10.1103/physrevd.48.r1914

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