A recast of CMS same-sign-dimuon data places the first direct bounds on the agnostic νSMEFT, excluding couplings below ~5.8×10⁻⁷ GeV⁻² at m_N≈1.5 TeV.
Probing heavy Majorana neutrinos and the Weinberg operator through vector boson fusion processes in proton-proton collisions at√s= 13 TeV,
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Direct constraints on the agnostic $\nu$SMEFT from heavy-neutrino searches at the LHC
A recast of CMS same-sign-dimuon data places the first direct bounds on the agnostic νSMEFT, excluding couplings below ~5.8×10⁻⁷ GeV⁻² at m_N≈1.5 TeV.