Pair Production of Scalar Leptoquarks at the LHC to NLO Parton Shower Accuracy

Abstract

We present the scalar leptoquark pair production process at the LHC computed at the next-to-leading order in QCD, matched to the PYTHIA parton shower using the MC@NLO formalism. We consider the leading order decay of a leptoquark to a lepton ($e,\mu ,\tau$ or ${\nu }_e,{\nu }_{\mu },{\nu }_{\tau }$) and a jet and observe the effects of parton shower on the final states. For demonstration, we display the kinametical distributions of a selection of observables along with their scale uncertainties for the 13 TeV LHC. We also present pair production cross sections and $K$-factors using massless five-quark flavor scheme for different LHC center-of-mass energies. The complete stand-alone code is available online.

9 pages, 2 tables, 6 figures. Typos fixed. Similar to the PRD version. Analysis/program extended to all generations

References in corpus (24)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Parton distributions for the LHC
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Automation of next-to-leading order computations in QCD: the FKS subtraction
• $R_K$ and future $b\to s\ell \ell$ BSM opportunities
• Flavor models for $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• On the Rational Terms of the one-loop amplitudes
• Leptoquarks, Dark Matter, and Anomalous LHC Events
• Searches for scalar leptoquarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for pair production of third-generation scalar leptoquarks and top squarks in proton-proton collisions at sqrt(s) = 8 TeV
• Lepton number violation at the LHC with leptoquark and diquark
• Single Productions of Colored Particles at the LHC: An Example with Scalar Leptoquarks
• Search for second generation scalar leptoquarks in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• The Leptoquark Implication from the CMS and IceCube Experiments
• Interpreting the CMS ${\ell }^{+}{\ell }^{-}jjE{/}_{\mathrm{T}}$ Excess with a Leptoquark Model
• Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at sqrt(s) = 7 TeV
• Explaining the CMS $eejj$ and $e\mathrm{missing}{\mathrm{p}}_{\mathrm{T}}\mathrm{jj}$ excess and leptogenesis in superstring inspired $E_6$ models
• Resonant Slepton Production Yields CMS $eejj$ and $ejj$ Missing $p_T$ Excesses
• Coloron-assisted Leptoquarks at the LHC
• Signatures of Leptoquarks at the LHC and Right-handed Neutrinos
• Stop and Sbottom LSP with R-parity Violation
• Sneutrino Higgs models explain lepton non-universality in CMS excesses

Cited by in corpus (60)

• Physics of leptoquarks in precision experiments and at particle colliders
• The Leptoquark Hunter's Guide: Pair Production
• The role of the $S_3$ GUT leptoquark in flavor universality and collider searches
• Leptoquark toolbox for precision collider studies
• Anomalies in Bottom from new physics in Top
• $R_{D^{(\ast )}}$ motivated ${\mathcal{S}}_1$ leptoquark scenarios: Impact of interference on the exclusion limits from LHC data
• Precision predictions for scalar leptoquark pair-production at hadron colliders
• Searches for third-generation scalar leptoquarks in $\sqrt{s}$ = 13 TeV pp collisions with the ATLAS detector
• Combined explanations of $(g-2{)}_{\mu }$, $R_{D^{(\ast )}}$, $R_{K^{(\ast )}}$ anomalies in a two-loop radiative neutrino mass model
• LHC constraints and prospects for $S_1$ scalar leptoquark explaining the $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$ anomaly
• Discrepancies in simultaneous explanation of Flavor Anomalies and IceCube PeV Events using Leptoquarks
• Addressing the ${\mathbf{R}}_{D^{(\ast )}}$ anomalies with an ${\mathbf{S}}_1$ leptoquark from $\mathbf{SO}(10)$ grand unification
• QCD Improved Matching for Semi-Leptonic B Decays with Leptoquarks
• Searching for Leptoquarks at IceCube and the LHC
• Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a $\tau$-lepton in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Searches for scalar leptoquarks and differential cross-section measurements in dilepton-dijet events in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV with the ATLAS experiment
• Hunting scalar leptoquarks with boosted tops and light leptons
• Search for new phenomena in final states with $b$-jets and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Enhancing Scalar Productions with Leptoquarks at the LHC
• Precise limits on the charge-$2/3$ $U_1$ vector leptoquark
• Revisiting scalar leptoquark at the LHC
• Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Leptoquark manoeuvres in the dark: a simultaneous solution of the dark matter problem and the $R_{D^{(\ast )}}$ anomalies
• Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
• Search for new phenomena in $pp$ collisions in final states with tau leptons, $b$-jets, and missing transverse momentum with the ATLAS detector
• A testable radiative neutrino mass model without additional symmetries and Explanation for the $b\to s{\ell }^{+}{\ell }^{-}$ anomaly
• Improving third-generation leptoquark searches with combined signals and boosted top
• Sensitivity of Future Hadron Colliders to Leptoquark Pair Production in the Di-Muon Di-Jets Channel
• 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
• A Three-loop Neutrino Mass Model with a Colored Triplet Scalar
• Seeking leptoquarks in the $\mathbf{t}\bar{\mathbf{t}}$ plus missing energy channel at the high-luminosity LHC
• Scalar leptoquark pair production at the LHC: precision predictions in the era of flavour anomalies
• Probing sterile neutrinos in the framework of inverse seesaw mechanism through leptoquark productions
• Search for pair-produced scalar and vector leptoquarks decaying into third-generation quarks and first- or second-generation leptons in pp collisions with the ATLAS detector
• Resonant leptoquark at NLO with POWHEG
• Leptoquark-assisted Singlet-mediated Di-Higgs Production at the LHC
• Phenomenology of TeV-scale scalar Leptoquarks in the EFT
• On Drell-Yan production of scalar leptoquarks coupling to heavy-quark flavours
• Search for pair production of third-generation leptoquarks decaying into a bottom quark and a $\tau$-lepton with the ATLAS detector
• Right-handed neutrino pair production via second-generation leptoquarks
• Fresh look at the LHC limits on scalar leptoquarks
• Scalar leptoquarks at the LHC and flavour anomalies: a comparison of pair-production modes at NLO-QCD
• Precise probing and discrimination of third-generation scalar leptoquarks
• Next-to-Leading-Order QCD Matching for $\Delta F=2$ Processes in Scalar Leptoquark Models
• Sneutrino Higgs models explain lepton non-universality in CMS excesses
• New Class of Two-Loop Neutrino Mass Models with Distinguishable Phenomenology
• Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Combination of searches for pair-produced leptoquarks at $\sqrt{s}=13$ TeV with the ATLAS detector
• Non-resonant Leptoquark with multigeneration couplings to $\mu \mu jj$ and $\mu \nu jj$ at LHC
• Asymmetric Leptoquark Pair Production at LHC
• Search for leptoquarks decaying into the b$\tau$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Vector leptoquark contributions to lepton dipole moments
• Mutually elusive: vectorlike antileptons and leptoquarks
• Search for leptoquark pair production decaying into $t{e}^{-}\bar{t}{e}^{+}$ or $t{\mu }^{-}\bar{t}{\mu }^{+}$ in multi-lepton final states in $pp$ collisions at 13 TeV with the ATLAS detector
• Jet Substructure Probe on Scalar Leptoquark Models via Top Polarization
• Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Indian Contributions to LHC Theory
• Novel Leptoquark Pair Production at LHC
• Search for supersymmetry in final states with missing transverse momentum and charm-tagged jets using 139 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector