Abstract

Deprecated: Function eregi_replace() is deprecated in /www/htdocs/Fakultaeten/nat_Fak_II/lat07/scripts/get_abstract.php on line 69

A strategy for performing non-perturbative computations in HQET with dynamical light quarks

Presenter: Jochen Heitger — Westfälische Wilhelms-Universität Münster, Institut für Theoretische Physik

Benoit Blossier, Michele Della Morte, Patrick Fritzsch, Nicolas Garron, Jochen Heitger, Harvey Meyer, Hubert Simma, Rainer Sommer

We explain how the general strategy of solving renormalization problems in HQET non-perturbatively by a matching to QCD in finite volume can be implemented to include dynamical fermions. As a primary application, the various elements of a HQET computation of the mass of the b-quark beyond the leading order with Nf=2 are outlined. In particular, the matching of HQET and QCD requires relativistic QCD simulations in a finite volume with fixed L ≈ 0.5 fm, which will serve to quantitatively determine the heavy quark mass dependence of heavy-light meson observables in the continuum limit of finite-volume two-flavour lattice QCD.