Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP01(2019)088
Keywords
Chiral Lagrangians; Effective Field Theories; Nonperturbative Effects
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Funding
- DOE [DE-SC0009919]
- Swiss National Science Foundation [P300P2_167751]
- Swiss National Science Foundation (SNF) [P300P2_167751] Funding Source: Swiss National Science Foundation (SNF)
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We compute the non-perturbative contribution of semileptonic tensor operators to the purely leptonic process e and to the electric and magnetic dipole moments of charged leptons by matching onto chiral perturbation theory at low energies. This matching procedure has been used extensively to study semileptonic and leptonic weak decays of hadrons. In this paper, we apply it to observables that contain no strongly interacting external particles. The non-perturbative contribution to e processes is used to extract the best current bound on lepton-flavor-violating semileptonic tensor operators, (BSM) 450 TeV. We briefly discuss how the same method applies to dark-matter interactions.
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