Search for dark matter produced in association with a dark Higgs boson decaying into $$W$$+$$W$$- in the one-lepton final state at $$\sqrt{s}$$ = 13 TeV using 139 fb-1 of $pp$ collisions recorded with the ATLAS detector
Journal Article
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· Journal of High Energy Physics (Online)
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- Centre National de la Recherche Scientifique (CNRS), Marseille (France). Centre de Physique des Particules de Marseille (CPPM), Institut National de Physique Nucleaire et de Physique des Particules (IN2P3); Aix-Marseille Université (France); The ATLAS Collaboration. et al.
Several extensions of the Standard Model predict the production of dark matter particles at the LHC. A search for dark matter particles produced in association with a dark Higgs boson decaying into $$W$$+$$W$$ in the $$\ell$$± $vq$$$$\overline{q}$$$$'$$ final states with $$\ell$$ = $e, μ$ is presented. This analysis uses 139 fb-1 of pp collisions recorded by the ATLAS detector at a centre-of-mass energy of 13 TeV. The $$W$$± → $$q$$$\overline{q}$$$$'$$ decays are reconstructed from pairs of calorimeter-measured jets or from track-assisted reclustered jets, a technique aimed at resolving the dense topology from a pair of boosted quarks using jets in the calorimeter and tracking information. The observed data are found to agree with Standard Model predictions. Scenarios with dark Higgs boson masses ranging between 140 and 390 GeV are excluded.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- The ATLAS Collaboration
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 2282089
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 7 Vol. 2023; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English