"Observed contour Dark Photon" of "Shining Light on the Dark Sector: Search for Axion-like Particles and Other New Physics in Photonic Final States with FASER"
d-Lambda correlation function (C(k*)) shown as a function of relative momentum (k*) at different centralities. Statistical and systematical uncertainties are shown with bars and boxes, respectively. S
Ratios of integrated per-trigger yield of $K_S^0$-h to h-h as a function of $p_{\mathrm{T}}^{\mathrm{trigg}}$ on the near-side for 50-100% multiplicity class
