出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We discuss the renormalisation properties of parity-odd DB = 2 operators with the heavy quark
treated in the static approximation. Via twisted mass QCD (tmQCD), these operators provide
the matrix elements relevant for the B0 − ¯B0 mixing amplitude. The layout of a non-perturbative
renormalisation programme for the operator basis, using Schrödinger Functional techniques, is
described. Finally, we report our results for a one-loop perturbative study of various renormalisation
schemes with Wilson-type lattice regularisations, which allows, in particular, to compute the
NLO anomalous dimensions of the operators in the SF schemes of interest.