Search for Dark Matter Produced in Association with a Dark Higgs Boson in the b(b)over-bar Final State Using pp Collisions at ?s=13 TeV with the ATLAS Detector - Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, N J; Abidi, S H; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; et al. (PHYSICAL REVIEW LETTERS, 2025)