Asymmetric Leptoquark Pair Production at LHC

Abstract

We investigate asymmetric leptoquark pair production mechanism at the Large Hadron Collider to advocate its potential relevance to establish reliable constraints on the leptoquark parameter space and its ability to aid in correct identification of these attractive sources of new physics. The main feature of asymmetric pair production that genuinely distinguishes it from the usual leptoquark pair production is given by the fact that the two leptoquarks that are produced in proton-proton collisions through a $t$-channel lepton exchange are not charge conjugates of each other. Hence the proposed name of asymmetric leptoquark pair production for this type of process. We spell out prerequisite conditions for the asymmetric leptoquark pair production mechanism to be operational and enumerate all possible combinations of leptoquark multiplets that can potentially generate it. We finally reinterpret existing leptoquark pair production search results within several simple scalar leptoquark extensions of the Standard Model, assuming that the leptoquarks exclusively couple to either electrons or muons and the first generation quarks, to demonstrate proper inclusion of asymmetric pair production. We consequently present accurate parameter space constraints for the $S_1$, $S_3$, $R_2$, $S_1$+$S_3$, and $S_1$+$R_2$ leptoquark scenarios.

arXiv comment27 pages + references; 13 figures. Constraints from atomic parity violation are added. Version accepted in JHEP

References in corpus (32)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Parton distributions for the LHC Run II
• Physics of leptoquarks in precision experiments and at particle colliders
• Stop Production at Hadron Colliders
• Confronting lepton flavor universality violation in B decays with high-$p_T$ tau lepton searches at LHC
• Supersymmetric top and bottom squark production at hadron colliders
• High-$p_T$ dilepton tails and flavour physics
• Precision Measurement of the Weak Charge of the Proton
• Pair production of scalar leptoquarks at the LHC
• Pair production of scalar leptoquarks at the Tevatron
• NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation
• The Leptoquark Hunter's Guide: Large Coupling
• Leptoquark toolbox for precision collider studies
• Cornering Scalar Leptoquarks at LHC
• Pair Production of Scalar Leptoquarks at the LHC to NLO Parton Shower Accuracy
• NNLL resummation for stop pair-production at the LHC
• Lepton-quark collisions at the Large Hadron Collider
• Hunting leptoquarks in monolepton searches
• Precision predictions for scalar leptoquark pair-production at hadron colliders
• Charm Physics Confronts High-$p_T$ Lepton Tails
• Single Productions of Colored Particles at the LHC: An Example with Scalar Leptoquarks
• Anticipating Non-Resonant New Physics in Dilepton Angular Spectra at the LHC
• Single Leptoquark Production at Hadron Colliders
• Atomic Parity Violation, Leptoquarks, and Contact Interactions
• NLO Leptoquark Production and Decay: The Narrow-Width Approximation and Beyond
• Signal and Backgrounds for Leptoquarks at the LHC
• Stop Lepton Associated Production at Hadron Colliders
• Scalar leptoquark pair production at the LHC: precision predictions in the era of flavour anomalies
• Resonant leptoquark at NLO with POWHEG
• Addendum to: Combined Constraints on First Generation Leptoquarks
• Scalar leptoquarks at the LHC and flavour anomalies: a comparison of pair-production modes at NLO-QCD

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