000634640 001__ 634640 000634640 005__ 20250814212320.0 000634640 0247_ $$2INSPIRETeX$$aATLAS:2025auy 000634640 0247_ $$2inspire$$ainspire:2942158 000634640 0247_ $$2arXiv$$aarXiv:2507.02175 000634640 0247_ $$2datacite_doi$$a10.3204/PUBDB-2025-02554 000634640 037__ $$aPUBDB-2025-02554 000634640 041__ $$aEnglish 000634640 088__ $$2arXiv$$aarXiv:2507.02175 000634640 088__ $$2CERN$$aCERN-EP-2025-141 000634640 1001_ $$0P:(DE-HGF)0$$aATLAS Collaboration$$b0$$eCollaboration author 000634640 245__ $$aA search for dark matter produced in association with a dark Higgs boson decaying into a Higgs boson pair in 3$b$ or 4$b$ final states using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector 000634640 260__ $$c2025 000634640 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1755178836_2845486 000634640 3367_ $$2ORCID$$aWORKING_PAPER 000634640 3367_ $$028$$2EndNote$$aElectronic Article 000634640 3367_ $$2DRIVER$$apreprint 000634640 3367_ $$2BibTeX$$aARTICLE 000634640 3367_ $$2DataCite$$aOutput Types/Working Paper 000634640 500__ $$aAll figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HMBS-2024-13 000634640 520__ $$aA search is performed for dark matter particles produced in association with a resonant pair of Higgs bosons using 140 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. This signature is expected in some extensions of the Standard Model predicting the production of dark matter particles, and is interpreted in terms of a dark Higgs model containing a $Z'$ mediator in which the dark Higgs boson $s$ decays into a pair of Higgs bosons. The dark Higgs boson is reconstructed through final states with at least three $b$-tagged jets, produced by the pair of Higgs boson decays, in events with significant missing transverse momentum consistent with the presence of dark matter. The observed data are found to be in good agreement with Standard Model predictions, constraining scenarios with dark Higgs boson masses within the range of 250 to 400 GeV and $Z'$ mediators up to 2.3 TeV. 000634640 536__ $$0G:(DE-HGF)POF4-611$$a611 - Fundamental Particles and Forces (POF4-611)$$cPOF4-611$$fPOF IV$$x0 000634640 536__ $$0G:(GEPRIS)469666862$$aDFG project G:(GEPRIS)469666862 - Präzisionstests des Standardmodells unter der Verwendung von geboosteten W/Z-Bosonen am Large Hadron Collider (469666862)$$c469666862$$x1 000634640 536__ $$0G:(EU-Grant)101116429$$aBARD - B-resonance Algorithm using Rare Decays (101116429)$$c101116429$$fERC-2023-STG$$x2 000634640 536__ $$0G:(EU-Grant)101089007$$aDITTO - Comprehensive search for new phenomena in the dilepton spectrum at the LHC (101089007)$$c101089007$$fERC-2022-COG$$x3 000634640 536__ $$0G:(EU-Grant)101002463$$aREALDARK - REAL-time discovery strategies for DARK matter and dark sector signals at the ATLAS detector with Run-3 LHC data (101002463)$$c101002463$$fERC-2020-COG$$x4 000634640 536__ $$0G:(EU-Grant)101081355$$aSMASH - Machine learning for Sciences and Humanities (101081355)$$c101081355$$fHORIZON-MSCA-2021-COFUND-01$$x5 000634640 588__ $$aDataset connected to INSPIRE 000634640 693__ $$0EXP:(DE-H253)LHC-Exp-ATLAS-20150101$$1EXP:(DE-588)4398783-7$$5EXP:(DE-H253)LHC-Exp-ATLAS-20150101$$aLHC$$eLHC: ATLAS$$x0 000634640 8564_ $$uhttps://bib-pubdb1.desy.de/record/634640/files/2507.02175v1.pdf$$yOpenAccess 000634640 8564_ $$uhttps://bib-pubdb1.desy.de/record/634640/files/2507.02175v1.pdf?subformat=pdfa$$xpdfa$$yOpenAccess 000634640 909CO $$ooai:bib-pubdb1.desy.de:634640$$popenaire$$popen_access$$pdriver$$pVDB$$pec_fundedresources$$pdnbdelivery 000634640 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-HGF)0$$aDeutsches Elektronen-Synchrotron$$b0$$kDESY 000634640 9131_ $$0G:(DE-HGF)POF4-611$$1G:(DE-HGF)POF4-610$$2G:(DE-HGF)POF4-600$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMatter and the Universe$$vFundamental Particles and Forces$$x0 000634640 9141_ $$y2025 000634640 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000634640 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 000634640 9201_ $$0I:(DE-H253)ATLAS-20120731$$kATLAS$$lLHC/ATLAS Experiment$$x0 000634640 980__ $$apreprint 000634640 980__ $$aVDB 000634640 980__ $$aUNRESTRICTED 000634640 980__ $$aI:(DE-H253)ATLAS-20120731 000634640 9801_ $$aFullTexts