Improving heavy Dirac neutrino prospects at future hadron colliders using machine learning

Abstract

In this work, by using the machine learning methods, we study the sensitivities of heavy pseudo-Dirac neutrino $N$ in the inverse seesaw at the high-energy hadron colliders. The production process for the signal is $pp\to \ell N\to 3\ell +E_T^{\mathrm{miss}}$, while the dominant background is $pp\to WZ\to 3\ell +E_T^{\mathrm{miss}}$. We use either the Multi-Layer Perceptron or the Boosted Decision Tree with Gradient Boosting to analyse the kinematic observables and optimize the discrimination of background and signal events. It is found that the reconstructed $Z$ boson mass and heavy neutrino mass from the charged leptons and missing transverse energy play crucial roles in separating the signal from backgrounds. The prospects of heavy-light neutrino mixing $|V_{\ell N}{|}^2$ (with $\ell =e,\mu$) are estimated by using machine learning at the hadron colliders with $\sqrt{s}=14$ TeV, 27 TeV, and 100 TeV, and it is found that $|V_{\ell N}{|}^2$ can be improved up to $\mathcal{O}(10^{-6})$ for heavy neutrino mass $m_N=100$ GeV and $\mathcal{O}(10^{-4})$ for $m_N=1$ TeV.

arXiv comment33 pages, 14 figures, 4 tables, more details and more references added, version published in JHEP

References in corpus (87)

• 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
• An Introduction to PYTHIA 8.2
• FastJet user manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Parton distributions with LHC data
• FeynRules - Feynman rules made easy
• Discrete Flavor Symmetries and Models of Neutrino Mixing
• Non-Abelian Discrete Symmetries in Particle Physics
• Neutrino Mass and Mixing with Discrete Symmetry
• The Search for Heavy Majorana Neutrinos
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• Parton distributions with QED corrections
• 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
• Radiatively Induced Neutrino Masses and Large Higgs-Neutrino Couplings in the Standard Model with Majorana Fields
• Multijet matrix elements and shower evolution in hadronic collisions: W b bbar + n jets as a case study
• Flavor structures of charged fermions and massive neutrinos
• Effects of new leptons in Electroweak Precision Data
• Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities
• Signatures for Majorana neutrinos at hadron colliders
• Heavy neutrino signals at large hadron colliders
• Non-Unitarity, sterile neutrinos, and Non-Standard neutrino Interactions
• Minimal Radiative Neutrino Mass Mechanism for Inverse Seesaw Models
• Sterile neutrino searches at future $e^{-}{e}^{+}$, $pp$, and $e^{-}p$ colliders
• Inverse Seesaw Neutrino Signatures at LHC and ILC
• Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
• Testing sterile neutrino extensions of the Standard Model at future lepton colliders
• 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
• Global Constraints on a Heavy Neutrino
• Discrete Flavour Symmetries, Neutrino Mixing and Leptonic CP Violation
• Fully-Automated Precision Predictions for Heavy Neutrino Production Mechanisms at Hadron Colliders
• Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
• Unified explanation of the $eejj$, diboson and dijet resonances at the LHC
• Prospects of Heavy Neutrino Searches at Future Lepton Colliders
• Displaced vertex searches for sterile neutrinos at future lepton colliders
• Bounds on TeV Seesaw Models from LHC Higgs Data
• Heavy neutral fermions at the high-luminosity LHC
• Improving Electro-Weak Fits with TeV-scale Sterile Neutrinos
• Signature for heavy Majorana neutrinos in hadronic collisions
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• Improved bounds on the heavy neutrino productions at the LHC
• Light and Superlight Sterile Neutrinos in the Minimal Radiative Inverse Seesaw Model
• Heavy Neutrinos in displaced vertex searches at the LHC and HL-LHC
• Bounds on heavy Majorana neutrinos in type-I seesaw and implications for collider searches
• Long-lived Heavy Neutrinos from Higgs Decays
• Resonant CP Violation due to Heavy Neutrinos at the LHC
• Heavy Neutrinos with Dynamic Jet Vetoes: Multilepton Searches at $\sqrt{s}=14,27,$ and $100$ TeV
• Production of Heavy neutrino in next-to-leading order QCD at the LHC and beyond
• Probing Leptogenesis at Future Colliders
• Hadronic $ZZ$, $W^{-}{W}^{+}$, and $W^{\pm }Z$ Production with QCD Corrections and Leptonic Decays
• A frequentist analysis of three right-handed neutrinos with GAMBIT
• Displaced vertices as probes of sterile neutrino mixing at the LHC
• Constraining Sterile Neutrinos from Precision Higgs Data
• Multi-Lepton Collider Signatures of Heavy Dirac and Majorana Neutrinos
• Probing right handed neutrinos at the LHeC and lepton colliders using fat jet signatures
• Quasi-Dirac neutrinos at the LHC
• Mapping the viable parameter space for testable leptogenesis
• Extra Higgs Boson and $Z^{\prime }$ as Portals to Signatures of Heavy Neutrinos at the LHC
• NLO QCD corrections to WZ+jet production with leptonic decays
• Inclusive Displaced Vertex Searches for Heavy Neutral Leptons at the LHC
• New Avenues to Heavy Right-handed Neutrinos with Pair Production at Hadronic Colliders
• l W nu production at CLIC: a window to TeV scale non-decoupled neutrinos
• Left-Right Symmetry and Lepton Number Violation at the Large Hadron Electron Collider
• On Lepton Number Violation in Heavy Neutrino Decays at Colliders
• Flavour and polarisation in heavy neutrino production at e+ e- colliders
• Majorana vs Pseudo-Dirac Neutrinos at the ILC
• Jet substructure shedding light on heavy Majorana neutrinos at the LHC
• Probing the Heavy Neutrinos of Inverse Seesaw Model at the LHeC
• Majorana Neutrinos in Same-Sign $W^{\pm }{W}^{\pm }$ Scattering at the LHC: Breaking the TeV Barrier
• Looking for Minimal Inverse Seesaw scenarios at the LHC with Jet Substructure Techniques
• Searching for the minimal Seesaw models at the LHC and beyond
• Fat Jet Signature of a Heavy Neutrino at Lepton Collider
• Seesaw mechanism at electron-electron colliders
• Polarized window for left-right symmetry and a right-handed neutrino at the Large Hadron-Electron Collider
• Safe Jet Vetoes
• Heavy neutrinos from gluon fusion
• Leptonic anomalous magnetic moments in $\nu$SMEFT
• A Genetic Algorithm for Astroparticle Physics Studies
• Pair production of heavy neutrinos in next-to-leading order QCD at the hadron colliders in the inverse seesaw framework
• A quantitative study on helicity inversion in Majorana neutrino decays at the LHC
• Probing Left-Right Seesaw using Beam Polarization at an $e^{+}{e}^{-}$ Collider
• Searching for heavy neutrino in terms of tau lepton at future hadron collider

Cited by in corpus (1)

• Probing Light Scalars and Vector-like Quarks at the High-Luminosity LHC