Angular and polarization trails from effective interactions of Majorana neutrinos at the LHeC

Abstract

We study the possibility of the LHeC facility to disentangle different new physics contributions to the production of heavy sterile Majorana neutrinos in the lepton number violating channel $e^{-}p\to l_j^{+}+3jets$ ($l_j\equiv e,\mu$). This is done investigating the angular and polarization trails of effective operators with distinct Dirac-Lorentz structure contributing to the Majorana neutrino production, which parameterize new physics from a higher energy scale. We study an asymmetry in the angular distribution of the final anti-lepton and the initial electron polarization effect on the number of signal events produced by the vectorial and scalar effective interactions, finding both analyses could well separate their contributions.

arXiv comment22 pages, 13 figures Accepted in EPJC

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Cited by in corpus (15)

• The Large Hadron-Electron Collider at the HL-LHC
• Probing right handed neutrinos at the LHeC and lepton colliders using fat jet signatures
• Effective portals to heavy neutral leptons
• Assessment of the Dimension-5 Seesaw Portal and Impact of Exotic Higgs Decays on Non-Pointing Photon Searches
• Final taus and initial state polarization signatures from effective interactions of Majorana neutrinos at future $e^{+}{e}^{-}$ colliders
• Re-examining $N_R$-EFT Upto Dimension Six
• Lepton collider probes for Majorana neutrino effective interactions
• Sterile neutrino and leptonic decays of the pseudoscalar mesons
• Searching for the light Higgsinos in MSSM at the future e-p colliders
• Angular and polarization observables for Majorana-mediated B decays with effective interactions
• Majorana neutrinos with effective interactions in B decays
• Sensitivity prospects for lepton-trijet signals in the $\nu$SMEFT at the LHeC
• Future collider sensitivities to $\nu$SMEFT interactions
• Phenomenology of Dirac neutrino EFTs up to dimension six
• The LHeC Project: e-Ring Revisited