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Discovering the Higgs Through Highly-Displaced Vertices
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Discovering the Higgs Through Highly-Displaced Vertices
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We suggest that the Higgs could be discovered at the Tevatron or the LHC (perhaps at the LHCb detector) through decays with one or more substantially displaced vertices from the decay of new neutral particles. This signal may occur with a small but measurable branching fraction in the recently-described ``hidden valley'' models, hep-ph/0604261; weakly-coupled models with multiple scalars, including those of hep-ph/0511250, can also provide such signals, potentially with a much larger branching fraction. This decay channel may extend the Higgs mass reach for the Tevatron. Unusual combinations of b jets, lepton pairs and/or missing energy may accompany this signal.
Forward citations
Cited by 5 Pith papers
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High Multiplicity Trigger for Long-Lived Particles in CMS detector
CMS implements and deploys a dedicated high-multiplicity trigger targeting displaced LLP decays in the muon system for Run 3 data taking.
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Search for soft unclustered energy patterns containing muons in the final state in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
No significant excess observed in search for SUEP signatures with muons; exclusion limits set on mediator cross section times branching fraction down to 0.05 fb at 750 GeV.
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Search for massive, long-lived particles in events with displaced vertices and displaced muons in $pp$ collisions at $\sqrt{s}=13.6$ TeV with the ATLAS experiment
No signal of displaced-vertex-plus-displaced-muon events is seen in 164 fb^-1 of 13.6 TeV pp data; ATLAS sets improved 95% CL limits on RPV SUSY higgsino and stop production.
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FIMPs in a two-component dark matter model with $Z_2 \times Z_4$ symmetry
In a Z2×Z4 two-component FIMP model, the scalar coupling λds can be as small as ~10^-20 to 10^-24 while h2-mediated processes still control scalar dark matter production.
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Heavy singlet fermionic dark matter with $Z_4$ symmetry
In the Z4-symmetric singlet fermionic DM model with a new scalar, viable heavy-DM parameter space in the secluded regime permits non-negligible Higgs mixing while satisfying relic density and direct detection bounds.
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