Lepton-flavour violation in hadronic tau decays and μ-τ conversion in nuclei
Tomáš Husek, Kevin Monsálvez-Pozo, Jorge Portolés
Abstract
A bstract Within the Standard Model Effective Field Theory framework, with operators up to dimension 6, we perform a model-independent analysis of the lepton-flavour-violating processes involving tau leptons. Namely, we study hadronic tau decays and ℓ-τ conversion in nuclei, with ℓ = e, μ . Based on available experimental limits, we establish constraints on the Wilson coefficients of the operators contributing to these processes. Our work paves the way to extract the related information from Belle II and foreseen future experiments.
Topics & Concepts
PhysicsHadronParticle physicsDimension (graph theory)Effective field theoryField (mathematics)Standard Model (mathematical formulation)Physics beyond the Standard ModelWork (physics)Nuclear physicsField theory (psychology)Experimental dataQuantum field theoryTheoretical physicsCP violationFeynman graphOperator product expansionQuantum chromodynamicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsNeutrino Physics Research