Same-sign dileptons as a signature for heavy Majorana neutrinos in hadron-hadron collisions

Abstract

We discuss the possibility of same-sign dileptons as a signature for Majorana neutrinos. The production mechanism is given by a single heavy neutrino production and decay proton-proton -> l^{\pm} N X -> l^{\pm} l^{\pm} X'. Cross section and distributions are presented for the LHC energies.

07 pages, LaTeX; to be published in Physics Letters B

References in corpus (5)

• Non-decoupling of Heavy Neutrinos and Lepton Flavour Violation
• Limits on Neutrino Mixing with new Heavy Particles
• New Fermions at e${}^{+}$e${}^{-}$ Colliders: I. Production and Decay
• Phenomenological Consequences of Singlet Neutrinos
• NEW PHYSICS AND RECENT HIGH PRECISION ELECTROWEAK MEASUREMENTS

Cited by in corpus (26)

• The Phenomenology of Right Handed Neutrinos
• Search for new physics in events with same-sign dileptons and jets in pp collisions at sqrt(s) = 8 TeV
• On the physics of massive neutrinos
• Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
• Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at sqrt(s) = 7 TeV
• Signature for heavy Majorana neutrinos in hadronic collisions
• Search for new physics in same-sign dilepton events in proton-proton collisions at sqrt(s) = 13 TeV
• Search for physics beyond the standard model in events with two leptons of same sign, missing transverse momentum, and jets in proton-proton collisions at sqrt(s) = 13 TeV
• Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy at the LHC
• Neutrino physics at large colliders
• Search for physics beyond the standard model in events with jets and two same-sign or at least three charged leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The simplest of them all: $t\bar{t}{W}^{\pm }$ at NLO accuracy in QCD
• Search for new physics in events with same-sign dileptons and b jets in pp collisions at sqrt(s) = 8 TeV
• Heavy Neutrinos and Lepton Number Violation in lp Colliders
• Combined NLO EW and QCD corrections to off-shell $\text{t}\overline{\text{t}}\text{W}$ production at the LHC
• NLO QCD corrections to off-shell $\text{t}\bar{\text{t}}{\text{W}}^{+}$ production at the LHC
• Pairs of charged heavy-fermions from an SU(3)$_{L}\otimesU(1)_{N}$ model at $e^{+}{e}^{-}$ colliders
• Discriminating among the theoretical origins of new heavy Majorana neutrinos at the CERN LHC
• Inclusive Search for Anomalous Production of High-pT Like-Sign Lepton Pairs in Proton-Antiproton Collisions at sqrt{s}=1.8 TeV
• Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Neutral heavy lepton production at next high energy $e^{+}{e}^{-}$ linear colliders
• Signatures of heavy Majorana neutrinos and HERA's isolated lepton events
• Single neutral heavy lepton production at electron-muon colliders
• NLO QCD predictions for off-shell $t\bar{t}W$ production in association with a light jet at the LHC
• NLO QCD corrections to off-shell $t\bar{t}{W}^{\pm }$ production at the LHC: Correlations and Asymmetries
• Signatures of Right-Handed Majorana neutrinos and gauge bosons in $e\gamma$ Collisions