Pion and kaon role in τ decays, gμ-2, the running of αQED and the muonium hyperfine splitting
J. E. Palomar
Abstract
We make use of recent accurate results obtained for the pion and kaon vector form factors within a chiral unitary approach in order to calculate the decay widths of the τ lepton to these mesons and also to evaluate the contribution of this two mesons to the anomalous magnetic moment of the muon, the running of the fine structure constant and the muonium hyperfine splitting.
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