Nonperturbative renormalization and O(a)-improvement of the nonsinglet vector current with Nf = 2 + 1 Wilson fermions and tree-level Symanzik improved gauge action

In calculating hadronic contributions to precision observables for tests of the Standard Model in lattice QCD, the electromagnetic current plays a central role. Using a Wilson action with O(a) improvement in QCD with Nf flavors, a counterterm must be added to the vector current in order for its on-s...

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Veröffentlicht in:	Physical review. D 2019-01, Vol.99 (1), p.014519
Hauptverfasser:	Gérardin, Antoine, Harris, Tim, Meyer, Harvey B
Format:	Artikel
Sprache:	eng
Schlagworte:	Computer simulation Fermions Flavor (particle physics) Mass matrix Mathematical analysis Matrix methods Perturbation theory Quantum chromodynamics Quarks Vector currents
Online-Zugang:	Volltext
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