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000634640 005__ 20250814212320.0
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000634640 0247_ $$2arXiv$$aarXiv:2507.02175
000634640 0247_ $$2datacite_doi$$a10.3204/PUBDB-2025-02554
000634640 037__ $$aPUBDB-2025-02554
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000634640 088__ $$2arXiv$$aarXiv:2507.02175
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000634640 1001_ $$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__ $$c2025
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000634640 500__ $$aAll figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HMBS-2024-13
000634640 520__ $$aA search is performed for dark matter particles produced in association with a resonant pair of Higgs bosons using 140 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. This signature is expected in some extensions of the Standard Model predicting the production of dark matter particles, and is interpreted in terms of a dark Higgs model containing a $Z'$ mediator in which the dark Higgs boson $s$ decays into a pair of Higgs bosons. The dark Higgs boson is reconstructed through final states with at least three $b$-tagged jets, produced by the pair of Higgs boson decays, in events with significant missing transverse momentum consistent with the presence of dark matter. The observed data are found to be in good agreement with Standard Model predictions, constraining scenarios with dark Higgs boson masses within the range of 250 to 400 GeV and $Z'$ mediators up to 2.3 TeV.
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000634640 536__ $$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$$x4
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000634640 9141_ $$y2025
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