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Abstract
A search for dark-matter particles in events with large missing transverse
momentum and a Higgs boson candidate decaying into two photons is reported. The search uses 139 fb−1 of proton-proton collision data collected at √s = 13 TeV with the ATLAS detector at the CERN LHC between 2015 and 2018. No significant excess of events over the Standard Model predictions is observed. The results are interpreted by extracting limits on three simplified models that include either vector or pseudoscalar mediators and predict a final state with a pair of dark-matter candidates and a Higgs boson decaying into two photons.
momentum and a Higgs boson candidate decaying into two photons is reported. The search uses 139 fb−1 of proton-proton collision data collected at √s = 13 TeV with the ATLAS detector at the CERN LHC between 2015 and 2018. No significant excess of events over the Standard Model predictions is observed. The results are interpreted by extracting limits on three simplified models that include either vector or pseudoscalar mediators and predict a final state with a pair of dark-matter candidates and a Higgs boson decaying into two photons.
Original language | English |
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Article number | 13 |
Pages (from-to) | 1-49 |
Number of pages | 49 |
Journal | Journal of High Energy Physics |
Volume | 2021 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2021 |
Keywords / Materials (for Non-textual outputs)
- Hadron-Hadron scattering (experiments)