A dynamical study of the chirally rotated Schrödinger functional in QCD

The chirally rotated Schrödinger functional for Wilson-fermions allows for finite-volume, mass-independent renormalization schemes compatible with automatic O(a) improvement. So far, in QCD, the setup has only been studied in the quenched approximation. Here we present first results for Nf = 2 dynamical quark-flavours for several renormalization factors of quark-bilinears. We discuss how these renormalization factors can be easily obtained from simple ratios of two-point functions, and show how automatic O(a) improvement is at work. As a by-product of this investigation the renormalization of the non-singlet axial current, ZA, is determined very precisely.