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Renormalisation Constants of Bilinear Quark Operators with Nf=2 Maximally Twisted Mass Fermions

Presenter: Petros Dimopoulos — Universita' di Roma Tor Vergata

Petros Dimopoulos

We present results for the renormalisation constants of bilinear quark operators using the Nf=2 twisted mass Wilson action at maximal twist (which guarantees automatic O(a) improvement) and tree-level Symanzik improved gauge action. The scale-independent normalisation constants are computed with a new method, which makes use of both standard twisted mass and Osterwalder-Seiler fermions. Moreover, the results from an RI-MOM calculation are presented for both scale independent and scale dependent renormalisation constants.