Speaker
Description
Two-photon processes in relativistic heavy-ion collisions have emerged as a critical probe of quantum electrodynamics in ultra-intense electromagnetic fields, with recent focus extending beyond dileptons to hadronic final states. However, at present, quantitative studies of di-hadron production via two-photon interactions remain scarce. We employ the Equivalent Photon Approximation to obtain differential cross-section predictions for $\pi^{+}\pi^{-}, K^{+}K^{-}$, and $p\bar{p}$ pairs produced in ultra-peripheral $\mathrm{Au{+}Au}$ collisions at $\sqrt{s_{NN}} = 200\,\text{GeV}$ within the STAR acceptance，using experimental input from previous measurements at electron-positron colliders to model the two-photon production cross sections for these final states. The calculations deliver the unified baseline for light-meson and baryon pairs in this environment, supplying benchmarks for upcoming STAR measurements and guiding future systematic investigations of hadronic two-photon processes at RHIC and LHC facilities.
