Heavy neutrino mixing prospects at hadron colliders: a machine learning study

2025/04/16 by Si-Yu Chen, Chen, Si-Yu, Jiao, Yu-Peng +8
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2504.12141

openalex publication_date 2025/04/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We apply machine learning to the searches of heavy neutrino mixing in the inverse seesaw in the framework of left-right symmetric model at the high-energy hadron colliders. The Majorana nature of heavy neutrinos can induce the processes pp → W_R^± → ℓ_α^± N → ℓ_α^± ℓ_β^{∓, ±} jj, with opposite-sign (OS) and same-sign (SS) dilepton and two jets in the final state. The distributions of the charged leptons ℓ = e , μ and jets and their correlations are utilized as input for machine learning analysis. It is found that for both the OS and SS processes, XGBoost can efficiently distinguish signals from the standard model backgrounds. We estimate the sensitivities of heavy neutrino mass m_N and their mixing in the OS and SS ee, μμ and eμ final states at √(s) = 14 TeV, 27 TeV and 100 TeV. It turns out that the heavy neutrinos can be probed up to 17.1 TeV and 19.5 TeV in the OS and SS channels, respectively. The sine of the mixing angle of heavy neutrinos can be probed up to the maximal value of √2/2 and 0.69 in the OS and SS channels, respectively.

Citations

• Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at √(s) = 13 TeV
• The symmetry approach to quark and lepton masses and mixing
• Neutrino Mass and Mixing with Modular Symmetry
• Phenomenology of Lepton Masses and Mixing with Discrete Flavor Symmetries
• Direct bounds on Left-Right gauge boson masses at LHC Run 2
• Probing Heavy Neutrinos at the LHC from Fat-jet using Machine Learning
• Quasi-Dirac neutrinos in the linear seesaw model
• Left-right symmetry and leading contributions to neutrinoless double beta decay
• Interference effect in lepton number violating and conserving meson decays for a left-right symmetric model
• Flavor structures of charged fermions and massive neutrinos
• On Lepton Number Violation in Heavy Neutrino Decays at Colliders
• Interference effects in LNV and LFV semileptonic decays: the Majorana hypothesis
• CP Violating Effects in Heavy Neutrino Oscillations: Implications for Colliders and Leptogenesis
• Revisiting the LHC reach in the displaced region of the minimal left-right symmetric model
• Relaxing LHC constraints on the W_R mass
• Probing neutrino Dirac mass in left-right symmetric models at the LHC and next generation colliders
• Perturbativity constraints on U(1)_B-L and left-right models and implications for heavy gauge boson searches
• Keung-Senjanović process at LHC: from LNV to displaced vertices to invisible decays
• Searches for light sterile neutrinos with multitrack displaced vertices
• Discrete Flavour Symmetries, Neutrino Mixing and Leptonic CP Violation
• Lepton Number Violation: Seesaw Models and Their Collider Tests
• Same Sign versus Opposite Sign Dileptons as a Probe of Low Scale Seesaw Mechanisms
• Constraining Right Handed Gauge Boson Mass from Lepton Number Violating Meson Decays in a Low Scale Left Right Model
• Lepton number violation at colliders from kinematically inaccessible gauge bosons
• Automated Neutrino Jet and Top Jet Predictions at Next-to-Leading-Order with Parton Shower Matching in Effective Left-Right Symmetric Models
• Is Left-Right Symmetry the Key?
• Quasi-Dirac neutrinos at the LHC
• Neutrino Jets from High-Mass W_R Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• Dilepton bounds on left–right symmetry at the LHC run II and neutrinoless double beta decay
• Lepton Number Violation and `Diracness' of massive neutrinos composed of Majorana states
• XGBoost: A Scalable Tree Boosting System
• Testing the 2-TeV Resonance with Trileptons
• The Scalar Triplet Contribution to Lepton Flavour Violation and Neutrinoless Double Beta Decay in Left-Right Symmetric Model
• Disambiguating Seesaw Models using Invariant Mass Variables at Hadron Colliders
• LHC dijet constraints on double beta decay
• Unified explanation of the eejj, diboson and dijet resonances at the LHC
• Concept for a Future Super Proton-Proton Collider
• Search for Heavy Right-Handed Neutrinos at the LHC and Beyond in the Same-Sign Same-Flavor Leptons Final State
• Heavy neutrinos and the pp→ lljj CMS data
• Left-Right Symmetric Models at the High-Intensity Frontier
• Lepton Number Violation in Higgs Decay at LHC
• Neutrinos and Collider Physics
• New Paradigm for Baryon and Lepton Number Violation
• Planck-scale induced left–right gauge theory at LHC and experimental tests
• Right-handed lepton mixings at the LHC
• Double Beta Decay, Lepton Flavour Violation and Collider Signatures of Left-Right Symmetric Models with Spontaneous D Parity Breaking
• An Introduction to PYTHIA 8.2
• The Higgs Mass, Superconnections and the TeV-scale Left-Right Symmetric Model
• Signal of Right-Handed Charged Gauge Bosons at the LHC?
• TeV Scale Left-Right Symmetry and Large Mixing Effects in Neutrinoless Double Beta Decay
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Heavy neutrino searches at the LHC with displaced vertices
• On neutrinoless double beta decay in the minimal left-right symmetric model
• Parton distributions with QED corrections
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Short-range mechanisms of neutrinoless double beta decay at the LHC
• Complex Spinors and Unified Theories
• Probing Heavy-Light Neutrino Mixing in Left-Right Seesaw Models at the LHC
• Constraining neutrino mass from neutrinoless double beta decay
• Lepton number and flavour violation in TeV-scale left-right symmetric theories with large left-right mixing
• Neutrino Mass and Mixing with Discrete Symmetry
• Lepton Number Violation and W' Chiral Couplings at the LHC
• Parton distributions with LHC data
• Heavy Neutrinos and Lepton Flavour Violation in Left-Right Symmetric Models at the LHC
• Neutrinoless double-β decay in TeV scale Left-Right symmetric models
• Flavor in heavy neutrino searches at the LHC
• Multilepton collider signatures of heavy Dirac and Majorana neutrinos
• Neutrinoless Double Beta Decay: Low Left-Right Symmetry Scale?
• First Limits on Left-Right Symmetry Scale from LHC Data
• Two Simple W' Models for the Early LHC
• Left-Right Symmetry: from LHC to Neutrinoless Double Beta Decay
• Non-Abelian Discrete Symmetries in Particle Physics
• Discrete Flavor Symmetries and Models of Neutrino Mixing
• Is leptogenesis falsifiable at LHC?
• The anti-ktjet clustering algorithm
• General CP violation in minimal left–right symmetric model and constraints on the right-handed scale
• Do charged leptons oscillate?
• Right-Handed Quark Mixings in Minimal Left-Right Symmetric Model with General CP Violation
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• Greedy function approximation: A gradient boosting machine.
• Review of Particle Physics
• Double beta decay in left-right symmetric models
• Lepton number as the fourth "color"

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