A theoretical determination of the hadronic contributions to the anomalous magnetic moment of the tau lepton is obtained using an approach based on QCD sum-rules. The result is compared with the phenomenological value for the hadronic corrections and the role of the vacuum condensation parameters is discussed. Furthermore, using a dispersion relation, a prediction for a linear combination of the anomalous magnetic moments of the tau and muon is obtained.
QCD sum rule prediction for the hadronic contribution to the anomalous magnetic moment of the tau
Orlandini, Giuseppina;
1993-01-01
Abstract
A theoretical determination of the hadronic contributions to the anomalous magnetic moment of the tau lepton is obtained using an approach based on QCD sum-rules. The result is compared with the phenomenological value for the hadronic corrections and the role of the vacuum condensation parameters is discussed. Furthermore, using a dispersion relation, a prediction for a linear combination of the anomalous magnetic moments of the tau and muon is obtained.File in questo prodotto:
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