We investigate the production of the as-yet-undetected true muonium within the quark-gluon plasma formed in relativistic heavy-ion collisions, employing a relativistic Boltzmann transport framework coupled to viscous hydrodynamic simulations. The obtained effective cross sections for central collisions are 1.23 $\mu \text{b}$ in AuAu collisions with $\sqrt{s_{\mathrm{NN}}}=200$ GeV and 14.2 $\mu \text{b}$ in PbPb collisions with $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV, resulting in a yield of $\mathcal{O}\left({10}^4\right)$ and $\mathcal{O}\left({10}^5\right)$ true muonium per billion $AA$ collisions at RHIC and the LHC, respectively. This establishes heavy-ion collisions as a promising process for detecting true muonium.

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• Quark-gluon plasma
• Relativistic heavy-ion collisions
• Transport in heavy-ion collisions
• Muonic atoms & molecules
• Muonium