In this work, we perform a model-to-data comparison for $\text{U}+\text{U}$ and $\text{Au}+\text{Au}$ collisions performed at the BNL Relativistic Heavy Ion Collider at $\sqrt{s_{\mathrm{NN}}}=193\mathrm{GeV}$ and $200\mathrm{GeV}$ using a multistage framework. Model calculations for various configurations of ${}^{238}\mathrm{U}$ and ${}^{197}\mathrm{Au}$ are used to compare with measurements of $\rho (v_n{\left\{2\right\}}^2,\langle p_T\rangle )$, the elliptic-flow-momentum correlator. It is found that momentum-flow correlations measured in high-energy nuclear collisions, combined with the flow harmonics themselves, are excellent probes of nuclear deformation and of nuclear structure in general.

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• Charged-particle multiplicity
• Collective flow
• Hydrodynamic models
• Lattice QCD
• Nuclear shapes and moments
• Nucleon distribution
• Particle correlations & fluctuations
• Quark-gluon plasma
• Relativistic heavy-ion collisions