Leading hadronic contributions to the running of the electroweak coupling constants from lattice QCD
Leading hadronic contributions to the running of the electroweak coupling constants from lattice QCD
The quark-connected leading-order hadronic contributions to the running of the electromagnetic fine structure constant, α QED, and the weak mixing angle, θ W , are determined by a four-flavour lattice QCD computation with twisted mass fermions. Full agreement of the results with a phenomenological analysis is observed with an even …