Thermal Resonant Leptogenesis produces the observed baryon asymmetry via a dominant thermal channel from Higgs decays and lepton-doublet coherences, without requiring quasi-degenerate sterile neutrinos.
New Production Mechanism for Heavy Neutrinos at the LHC
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We study a new production mechanism for heavy neutrinos at the LHC, which dominates over the usually considered $s$-channel $W$-exchange diagram for heavy-neutrino masses larger than 100 - 200 GeV. The new mechanism is infrared-enhanced by $t$-channel $W\gamma$-fusion processes. This has important implications for experimental tests of the seesaw mechanism of neutrino masses, and in particular, for the ongoing heavy neutrino searches at the LHC. We find that the direct collider limits on the light-to-heavy neutrino mixing can be significantly improved, when this new production channel is properly taken into account. The scope of this new mechanism can equally well be extended to other exotic searches at the LHC.
fields
hep-ph 2years
2026 2representative citing papers
Projected 2σ limits from a simulated 5.3 TeV muon-proton collider could reach |VℓN|² ≈ 10⁻⁶ for 200 GeV–1 TeV heavy Majorana neutrinos.
citing papers explorer
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Dominant Thermal Resonant Mechanism for Low-Scale Leptogenesis
Thermal Resonant Leptogenesis produces the observed baryon asymmetry via a dominant thermal channel from Higgs decays and lepton-doublet coherences, without requiring quasi-degenerate sterile neutrinos.
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Search for heavy Majorana neutrinos at muon-proton colliders via lepton-number-violating signals
Projected 2σ limits from a simulated 5.3 TeV muon-proton collider could reach |VℓN|² ≈ 10⁻⁶ for 200 GeV–1 TeV heavy Majorana neutrinos.