Non-perturbative O(a) improvement of the vector current
Marco Guagnelli, Rainer Sommer, Hamburg (Germany). Projekttraeger ''Erforschung der Kondensierten Materie: Synchrotronstrahlung'' Deutsches Elektronen-Synchrotron (DESY) · 1997
We discuss non-perturbative improvement of the vector current, using the Schroedinger functional formalism. By considering a suitable Ward identity, we compute the improvement coefficient which gives the O(a) mixing of the tensor current with the vector current. (orig.)