Heavy neutrinos and the $pp\to lljj$ CMS data

Abstract

We show that the excess in the $pp\to eejj$ CMS data can be naturally interpreted within the Minimal Left Right Symmetric model (MLRSM), keeping $g_L=g_R$, if CP phases and non-degenerate masses of heavy neutrinos are taken into account. As an additional benefit, a natural interpretation of the reported ratio (14:1) of the opposite-sign (OS) $pp\to l^{\pm }{l}^{\mp }jj$ to the same-sign (SS) $pp\to l^{\pm }{l}^{\pm }jj$ lepton signals is possible. Finally, a suppression of muon pairs with respect to electron pairs in the $pp\to lljj$ data is obtained, in accordance with experimental data. If the excess in the CMS data survives in the future, it would be a first clear hint towards presence of heavy neutrinos in right-handed charged currents with specific CP phases, mixing angles and masses, which will have far reaching consequences for particle physics directions.

arXiv comment8 pages, 7 figures. v2: minor changes, refs added, typos corrected, version accepted for publication in PLB

References in corpus (54)

• Big-Bang Nucleosynthesis
• MadGraph 5 : Going Beyond
• UFO - The Universal FeynRules Output
• FeynRules - Feynman rules made easy
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Left-Right Symmetry at LHC
• Left-Right Symmetry: from LHC to Neutrinoless Double Beta Decay
• TeV Scale See-Saw Mechanisms of Neutrino Mass Generation, the Majorana Nature of the Heavy Singlet Neutrinos and $\betabeta$-Decay
• Neutrinoless double beta decay and neutrino physics
• Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV
• Neutrinoless Double Beta Decay and Heavy Sterile Neutrinos
• Warm Dark Matter in Low Scale Left-Right Theory
• Heavy Neutrinos and Lepton Flavour Violation in Left-Right Symmetric Models at the LHC
• Resonant τ-Leptogenesis with Observable Lepton Number Violation
• Natural TeV-Scale Left-Right Seesaw for Neutrinos and Experimental Tests
• Present and Future K and B Meson Mixing Constraints on TeV Scale Left-Right Symmetry
• First Limits on Left-Right Symmetry Scale from LHC Data
• Left-Right Symmetry: from Majorana to Dirac
• Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV
• Quantization and renormalization of the manifest left-right symmetric model of electroweak interactions
• Right Handed Quark Mixing in Left-Right Symmetric Theory
• Probing Heavy-Light Neutrino Mixing in Left-Right Seesaw Models at the LHC
• Constraining Neutrino Mass from Neutrinoless Double Beta Decay
• Lepton Number Violation in Higgs Decay at LHC
• Neutrinoless double-$\beta$ decay in TeV scale Left-Right symmetric models
• Strong P invariance, neutron EDM and minimal Left-Right parity at LHC
• Naturalness and Testability of TeV Seesaw Mechanisms
• Large Mixing of Light and Heavy Neutrinos in Seesaw Models and the LHC
• Signal of Right-Handed Charged Gauge Bosons at the LHC?
• Double Beta Decay, Lepton Flavour Violation and Collider Signatures of Left-Right Symmetric Models with Spontaneous D Parity Breaking
• Restoration of Parity and the Right-Handed Analog of the CKM Matrix
• Light neutrinos from massless texture and below TeV seesaw scale
• Left-right symmetry at LHC and precise 1-loop low energy data
• Left-Right Symmetry and the Charged Higgs Bosons at the LHC
• Exploring the Doubly Charged Higgs of the Left-Right Symmetric Model using Vector Boson Fusion-like Events at the LHC
• Falsifying leptogenesis for a TeV scale $W_R^{\pm }$ at the LHC
• A closer look at the possible CMS signal of a new gauge boson
• The lowest limits on the doubly charged Higgs boson masses in the minimal left-right symmetric model
• On Possibility of Detecting the E-E- -> W-W- Process in the Standard Model
• Contributions of the W-boson propagator to muon and tau leptonic decay rates
• The Higgs Mass, Superconnections and the TeV-scale Left-Right Symmetric Model
• Heavy neutrino mixing and single production at Linear Collider
• Is there a chance to find heavy neutrinos in future linear colliders?
• Explaining the CMS $eejj$ and $e\mathrm{missing}{\mathrm{p}}_{\mathrm{T}}\mathrm{jj}$ excess and leptogenesis in superstring inspired $E_6$ models
• LHC Accessible Second Higgs Boson in the Left-Right Model
• CP violation in the lepton sector with Majorana neutrinos
• Majorana neutrino mass matrix with CP symmetry breaking
• CP Violation in the Heavy Neutrinos Production Process $e^{+}{e}^{-}\to N_1{N}_2$
• Search for doubly charged Higgs bosons through VBF at the LHC, and beyond
• The $eejj$ Excess Signal at the LHC and Constraints on Leptogenesis
• Constraints on neutrino parameters and doubly charged Higgs particles in the $e^{-}{e}^{-}\to W^{-}{W}^{-}$ process
• Charged Higgs contribution to $0\nu 2\beta$ decay
• NLO QCD corrections to tW' and tZ' production in forward-backward asymmetry models
• Left Right Model from Gauge Higgs Unification with Dark Matter

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• TeV Lepton Number Violation: From Neutrinoless Double Beta Decay to the LHC
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• Planck-scale induced left-right gauge theory at LHC and experimental tests
• Intersecting Branes, SUSY Breaking and the 2TeV Excess at the LHC
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• The case for mixed dark matter from sterile neutrinos
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