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Precision predictions for scalar leptoquark pair-production at hadron colliders

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arxiv 2002.08971 v2 pith:JY4ZMMS7 submitted 2020-02-20 hep-ph hep-ex

Christoph Borschensky , Benjamin Fuks , Anna Kulesza , Daniel Schwartländer This is my paper · ORCID
classification hep-phhep-ex
keywords leptoquarkaccuracycalculationscolliderscontributionscrosshadronpair-production
verification ladder T0 review T1 audit T2 compute T3 formal
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We revisit scalar leptoquark pair-production at hadron colliders and significantly improve the level of precision of the cross section calculations. Apart from QCD contributions, we include lepton t-channel exchange diagrams that turn out to be relevant in the light of the recent B-anomalies. We evaluate all contributions at next-to-leading-order accuracy in QCD and resum, in the threshold regime, soft-gluon radiation at next-to-next-to-leading logarithmic accuracy. Our predictions consist hence in the most precise leptoquark cross section calculations available to date, and are necessary for the best exploitation of leptoquark searches at the LHC.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A Comprehensive Search for Leptoquarks Decaying into Top-$\tau$ Final States at the Future LHC

    hep-ph 2025-01 conditional novelty 6.0 of 10

    Simulated ML-based search strategy for third-generation scalar leptoquarks decaying to top-tau pairs could extend the LHC exclusion reach to about 1.77 TeV at 500 fb^-1.

  2. The effects of a scalar singlet Leptoquark at the $Z$ factory

    hep-ph 2026-03 conditional novelty 5.0 of 10

    A scalar singlet leptoquark that explains B-meson anomalies produces a ~0.7% decrease in Z→τ+τ−, which future Z-factory measurements could detect, while Z→μ+μ− is essentially unchanged.

  3. Right-handed neutrino production through first-generation leptoquarks

    hep-ph 2024-12 conditional novelty 5.0 of 10

    At the HL-LHC, first-generation leptoquarks decaying to right-handed neutrinos are discovered most efficiently through indirect t-channel production, reaching leptoquark masses of roughly 3 to 10 TeV when the new coup...

  4. TooLQit: Leptoquark Models and Limits

    hep-ph 2024-12 conditional novelty 5.0 of 10

    TooLQit releases FeynRules models for all twelve leptoquark types and a Python calculator, CaLQ, that computes LHC dilepton limits on S1 and U1 couplings for masses from 1 to 5 TeV.

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