Signatures of ${\tilde{R}}_2$ class of Leptoquarks at the upcoming $ep$ colliders

Abstract

We explore the signatures of the ${\tilde{R}}_2$ class of leptoquark (LQ) models at the proposed $e^{-}p$ and $e^{+}p$ colliders. We carry out an analysis for the proposed colliders LHeC and FCC-eh with center of mass (c.m.) energy 1.3 TeV and 3.46 TeV, respectively. For ${\tilde{R}}_2$ class of LQ models, there are a number of final states that can arise from LQ production and its subsequent decay. In this report we do a detailed cut-based analysis for the $l^{\pm }j$ final state. We also discuss the effect of polarized electron and positron beams on LQ production and in turn on $l^{\pm }j$ production. At LHeC, the final state $l^{+}j$ has very good discovery prospect. We find that, only 100 ${\text{fb}}^{-1}$ of data can probe LQ mass upto 1.2 TeV with $5\sigma$ significance, even with a generic set of cuts. On the contrary, at FCC-eh, one can probe LQ masses upto 2.2 TeV (for $e^{-}$ beam) and 3 TeV (for $e^{+}$ beam), at more than $5\sigma$ significance with luminosity $1000{\text{fb}}^{-1}$ and $500{\text{fb}}^{-1}$, respectively.

arXiv comment10 pages, 11 figures

References in corpus (23)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Physics of leptoquarks in precision experiments and at particle colliders
• A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
• Leptoquark model to explain the $B$-physics anomalies, $R_K$ and $R_D$
• Non-Standard Interactions in Radiative Neutrino Mass Models
• Simplified models with baryon number violation but no proton decay
• Search for scalar leptoquarks in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment
• Cornering Scalar Leptoquarks at LHC
• Search for the third-generation scalar leptoquarks and heavy right-handed neutrinos in final states with two tau leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV
• $R_{D^{(\ast )}}$ motivated ${\mathcal{S}}_1$ leptoquark scenarios: Impact of interference on the exclusion limits from LHC data
• Constraints on models of scalar and vector leptoquarks decaying to a quark and a neutrino at $\sqrt{s}=$ 13 TeV
• Limits on scalar leptoquark interactions and consequences for GUTs
• Anticipating Non-Resonant New Physics in Dilepton Angular Spectra at the LHC
• Search for pair production of first-generation scalar leptoquarks at $\sqrt{s}=$ 13 TeV
• Hunting scalar leptoquarks with boosted tops and light leptons
• SU(5) Unification with TeV-scale Leptoquarks
• Search for a singly produced third-generation scalar leptoquark decaying to a $\tau$ lepton and a bottom quark in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Sensitivity of Future Hadron Colliders to Leptoquark Pair Production in the Di-Muon Di-Jets Channel
• Seeking leptoquarks in the $\mathbf{t}\bar{\mathbf{t}}$ plus missing energy channel at the high-luminosity LHC

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• Boosting vector leptoquark searches with boosted tops
• Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables
• Leptoquark-assisted Singlet-mediated Di-Higgs Production at the LHC
• Right-handed neutrino pair production via second-generation leptoquarks
• Distinguishing Leptoquarks at the LHC/FCC
• Displaced Neutrino Jets at the LHeC
• An Experiment for Electron-Hadron Scattering at the LHC
• Indian Contributions to LHC Theory
• Testing the $R_{D^{(\ast )}}$ Anomaly at the LHeC
• Constraining scalars of $16_H$ through proton decays in non-renormalisable $SO(10)$ models
• Constraining Scalar Doublet and Triplet Leptoquarks with Vacuum Stability and Perturbativity