Franklin, MelissaHuth, JohnMorii, Masahiro2023-06-302018-10ATLAS Collaboration. 2018. Search for dark matter in events with a hadronically decaying vector boson and missing transverse momentum in pp collisions at s=13$$ sqrt(s)=13 $$ TeV with the ATLAS detector, Journal of High Energy Physics, 2018: 180.1029-8479https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37376325A search for dark matter (DM) particles produced in association with a hadron- ically decaying vector boson is performed using pp collision data at a centre-of-mass energy of sqrt s = 13TeV corresponding to an integrated luminosity of 36.1fb−1, recorded by the ATLAS detector at the Large Hadron Collider. This analysis improves on previous searches for processes with hadronic decays of W and Z bosons in association with large missing transverse momentum (mono-W/Z searches) due to the larger dataset and further opti- mization of the event selection and signal region definitions. In addition to the mono-W/Z search, the as yet unexplored hypothesis of a new vector boson Z′ produced in association with dark matter is considered (mono-Z′ search). No significant excess over the Standard Model prediction is observed. The results of the mono-W/Z search are interpreted in terms of limits on invisible Higgs boson decays into dark matter particles, constraints on the parameter space of the simplified vector-mediator model and generic upper limits on the visible cross sections for W/Z+DM production. The results of the mono-Z′ search are shown in the framework of several simplified-model scenarios involving DM production in association with the Z′ boson.en-USJournal Article2023-06-3010.1007/jhep10(2018)180