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Low-Energy Effective Field Theory below the Electroweak Scale: Anomalous Dimensions
Elizabeth E. Jenkins, Aneesh V. Manohar, Peter Stoffer
We compute the one-loop anomalous dimensions of the low-energy effective Lagrangian below the electroweak scale, up to terms of dimension six. The theory has 70 dimension-five and…
Hadronic light-by-light contribution to : a dispersive approach
Gilberto Colangelo, Martin Hoferichter, Massimiliano Procura +1
After a brief introduction on ongoing experimental and theoretical activities on , we report on recent progress in approaching the calculation of the hadronic light-by-lig…
Low-Energy Effective Field Theory below the Electroweak Scale: Operators and Matching
Elizabeth E. Jenkins, Aneesh V. Manohar, Peter Stoffer
The gauge-invariant operators up to dimension six in the low-energy effective field theory below the electroweak scale are classified. There are 70 Hermitian dimension-five and 363…
Dispersion relations for
Tobias Isken, Bastian Kubis, Sebastian P. Schneider +1
We present a dispersive analysis of the decay amplitude for that is based on the fundamental principles of analyticity and unitarity. In this framework, final-state inte…
Dispersion relation for hadronic light-by-light scattering: two-pion contributions
Gilberto Colangelo, Martin Hoferichter, Massimiliano Procura +1
In this third paper of a series dedicated to a dispersive treatment of the hadronic light-by-light (HLbL) tensor, we derive a partial-wave formulation for two-pion intermediate sta…
Rescattering effects in the hadronic-light-by-light contribution to the anomalous magnetic moment of the muon
Gilberto Colangelo, Martin Hoferichter, Massimiliano Procura +1
We present a first model-independent calculation of intermediate states in the hadronic-light-by-light (HLbL) contribution to the anomalous magnetic moment of the muon $(g-2)_…