Speaker
Dr
Jochen Heitger
(University of Muenster, ITP)
Description
Based on a non-perturbative matching strategy between Heavy Quark Effective Theory (HQET) at O(1/m) and finite-volume QCD, we report on our determination of the effective theory parameters of all components of the HQET heavy-light axial and vector currents in two-flavour lattice QCD. These parameters, which can be fixed by matching conditions between suitable QCD and HQET observables evaluated through numerical simulations, are required to absorb the power divergences of lattice HQET, as, for instance, encountered in
an effective theory computation of form factors for semi-leptonic decays of B- and B_s-mesons.
Author
Dr
Jochen Heitger
(University of Muenster, ITP)
Co-authors
Christian Wittemeier
(University of Muenster)
Dr
Hubert Simma
(NIC, DESY Zeuthen)
Dr
Michele Della Morte
(University of Southern Denmark)
Dr
Piotr Korcyl
(University of Regensburg)
