Low-energy phenomenology of scalar leptoquarks at one-loop accuracy

2020/08/31 by Valerio Gherardi, David Marzocca, Elena Venturini
Mathematics · Physics and Astronomy · #Anomalous magnetic dipole moment #Dipole #Effective field theory #Electron #Geometry #High-Energy Particle Collisions Research #Lepton #Leptoquark #Loop (graph theory) #Low energy #Mathematics #Muon #Nuclear physics #Observable #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scalar (mathematics) #Statistics #Theoretical physics #hep-ex #hep-ph

paper · pdf · doi:10.1007/jhep01(2021)138

25 pages plus appendices, 9 figures, 6 tables. v3: added constraints from high-energy Drell-Yan, version accepted for publication by JHEP

arxiv created 2020/12/11 · openalex publication_date 2021/01/22 · arxiv updated 2021/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A bstract We perform a complete study of the low-energy phenomenology of S 1 and S 3 leptoquarks, aimed at addressing the observed deviations in B -meson decays and the muon magnetic dipole moment. Leptoquark contributions to observables are computed at one-loop accuracy in an effective field theory approach, using the recently published complete one-loop matching of these leptoquarks to the Standard Model effective field theory. We present several scenarios, discussing in each case the preferred parameter space and the most relevant observables.

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