Search for dark matter produced in association with a dark Higgs boson in the $b\bar{b}$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS Collaboration

A search is performed for dark matter particles produced in association with a resonantly produced pair of $b$-quarks with $30<m_{bb}<150$ GeV using 140 fb${}^{-1}$ of proton-proton…