Jet substructure shedding light on heavy Majorana neutrinos at the LHC

Abstract

The existence of tiny neutrino masses and flavor mixings can be explained naturally in various seesaw models, many of which typically having additional Majorana type SM gauge singlet right handed neutrinos ($N$). If they are at around the electroweak scale and furnished with sizeable mixings with light active neutrinos, they can be produced at high energy colliders, such as the Large Hadron Collider (LHC). A characteristic signature would be same sign lepton pairs, violating lepton number, together with light jets -- $pp\to N{\ell }^{\pm },N\to {\ell }^{\pm }{W}^{\mp },W^{\mp }\to jj$. We propose a new search strategy utilising jet substructure techniques, observing that for a heavy right handed neutrino mass $M_N$ much above $M_{W^{\pm }}$, the two jets coming out of the boosted $W^{\pm }$ may be interpreted as a single fat-jet ($J$). Hence, the distinguishing signal topology will be ${\ell }^{\pm }{\ell }^{\pm }J$. Performing a comprehensive study of the different signal regions along with complete background analysis, in tandem with detector level simulations, we compute statistical significance limits. We find that heavy neutrinos can be explored effectively for mass ranges $300$ GeV $\le M_N\le 800$ GeV and different light-heavy neutrino mixing $|V_{\mu N}{|}^2$. At the 13 TeV LHC with 3000 ${\mathrm{fb}}^{-1}$ integrated luminosity one can competently explore mixing angles much below present LHC limits, and moreover exceed bounds from electroweak precision data.

Accepted for publication in JHEP. 25 pages, 8 figures, 1 table

References in corpus (79)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• FastJet user manual
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• MadGraph 5 : Going Beyond
• Dispelling the N^3 myth for the Kt jet-finder
• Oscillating neutrinos and mu --> e, gamma
• FeynRules - Feynman rules made easy
• Jet substructure as a new Higgs search channel at the LHC
• Resonant Leptogenesis
• Identifying Boosted Objects with N-subjettiness
• JaxoDraw: A graphical user interface for drawing Feynman diagrams
• Neutrinos and Collider Physics
• Right-Handed Neutrinos at LHC and the Mechanism of Neutrino Mass Generation
• Distinguishing seesaw models at LHC with multi-lepton signals
• Maximizing Boosted Top Identification by Minimizing N-subjettiness
• JaxoDraw: A graphical user interface for drawing Feynman diagrams. Version 2.0 release notes
• Low energy effects of neutrino masses
• TeV Scale See-Saw Mechanisms of Neutrino Mass Generation, the Majorana Nature of the Heavy Singlet Neutrinos and $\betabeta$-Decay
• Sterile neutrino searches at future $e^{-}{e}^{+}$, $pp$, and $e^{-}p$ colliders
• Inverse Seesaw Neutrino Signatures at LHC and ILC
• Heavy neutrino searches at the LHC with displaced vertices
• $W^{\pm }Z$ production at hadron colliders in NNLO QCD
• Probing Lepton Number Violation via Majorana Neutrinos at Hadron Supercolliders
• New Production Mechanism for Heavy Neutrinos at the LHC
• Direct Bounds on Electroweak Scale Pseudo-Dirac Neutrinos from $\sqrt{s}=8$ TeV LHC Data
• The mu - e Conversion in Nuclei, mu --> e gamma, mu --> 3e Decays and TeV Scale See-Saw Scenarios of Neutrino Mass Generation
• Natural TeV-Scale Left-Right Seesaw for Neutrinos and Experimental Tests
• Electroweak scale seesaw and heavy Dirac neutrino signals at LHC
• See-Saw Energy Scale and the LSND Anomaly
• Low Energy Signatures of the TeV Scale See-Saw Mechanism
• Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
• Unified explanation of the $eejj$, diboson and dijet resonances at the LHC
• Multilepton and Lepton Jet Probes of Sub-Weak-Scale Right-Handed Neutrinos
• Prospects of Heavy Neutrino Searches at Future Lepton Colliders
• Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV
• Heavy neutrinos and the $pp\to lljj$ CMS data
• Bounds on TeV Seesaw Models from LHC Higgs Data
• Probing Heavy-Light Neutrino Mixing in Left-Right Seesaw Models at the LHC
• Lepton Flavour Violation and theta(13) in Minimal Resonant Leptogenesis
• Improving Electro-Weak Fits with TeV-scale Sterile Neutrinos
• Improved bounds on the heavy neutrino productions at the LHC
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• Bounds on heavy Majorana neutrinos in type-I seesaw and implications for collider searches
• Same Sign versus Opposite Sign Dileptons as a Probe of Low Scale Seesaw Mechanisms
• Electroweak limits on physics beyond the Standard Model
• Production of Heavy neutrino in next-to-leading order QCD at the LHC and beyond
• Naturalness and Testability of TeV Seesaw Mechanisms
• Large Mixing of Light and Heavy Neutrinos in Seesaw Models and the LHC
• Constraining Sterile Neutrinos from Precision Higgs Data
• Long Lived Light Scalars as Probe of Low Scale Seesaw Models
• Multi-Lepton Collider Signatures of Heavy Dirac and Majorana Neutrinos
• Complete NLO corrections to ${\mathrm{W}}^{+}{\mathrm{W}}^{+}$ scattering and its irreducible background at the LHC
• Lepton Number Violation and `Diracness' of massive neutrinos composed of Majorana states
• Exotic $\mu \tau jj$ events from heavy ISS neutrinos at the LHC
• Heavy lepton pair production at LHC: model discrimination with multi-lepton signals
• New Avenues to Heavy Right-handed Neutrinos with Pair Production at Hadronic Colliders
• Left-Right Symmetry and Lepton Number Violation at the Large Hadron Electron Collider
• Flavour in heavy neutrino searches at the LHC
• Discovering sterile Neutrinos ligther than $M_W$ at the LHC
• Prospect of Heavy Right-Handed Neutrino Search at SSC/LHC Energies
• Neutrino Masses from Neutral Top Partners
• Measuring heavy neutrino couplings at the LHC
• Search for right-handed neutrinos from dark matter annihilation with gamma-rays
• Lepton-Jets and Low-Mass Sterile Neutrinos at Hadron Colliders
• How the Inverse See-Saw Mechanism Can Reveal Itself Natural, Canonical and Independent of the Right-Handed Neutrino Mass
• Hunting for heavy composite Majorana neutrinos at the LHC
• Minimal Flavor Violation in the Minimal U(1)_{B-L} Model and Resonant Leptogenesis
• Exploring novel correlations in trilepton channels at the LHC for the minimal supersymmetric inverse seesaw model
• Observable Seesaw and its Collider Signatures
• Looking for hints of a reconstructible seesaw model at the Large Hadron Collider
• Constraints on a seesaw model leading to quasidegenerate neutrinos and signatures at the LHC
• Majorana Neutrinos from Inverse Seesaw in Warped Extra Dimension
• Perspectives for tests of neutrino mass generation at the GeV scale: Experimental reach versus theoretical predictions
• Extra dimensions and Seesaw Neutrinos at the International Linear Collider
• New mechanism for Type-II seesaw dominance in SO(10) with low-mass Z-prime, RH neutrinos, and verifiable LFV, LNV, and proton decay
• Remark on Natural Models of Neutrinos
• Seesaw Neutrino Signals at the Large Hadron Collider
• Pseudo Dirac Neutrinos in Seesaw Model

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