Abstract
The use of Heavy Quark Effective Theory (HQET) on the lattice as an approach to B-physics phenomenology is based on a non-perturbative matching of HQET to QCD in finite volume. As a first step to apply the underlying strategy in the three-flavor (Nf=2+1 ) theory, we determine the renormalization constant and improvement coefficients relating the renormalized current and subtracted quark mass of (quenched) valence quarks in O(a) improved Nf=3 lattice QCD. We present our strategy and first results for the relevant parameter region towards weak couplings along a line of constant physics, which corresponds to lattice resolutions a=0.02 fm and fixes the physical extent of the matching volume to L˜0.5 fm.
DOI
10.22323/1.334.0218
Publication Date
2019-05-29
Publication Title
Proceedings of The 36th Annual International Symposium on Lattice Field Theory — PoS(LATTICE2018)
Volume
334
Publisher
Sissa Medialab
Embargo Period
2024-11-22
Recommended Citation
Kuberski, S., Fritzsch, P., & Heitger, J. (2019) '$\mathcal{O}(a)$ improved quark mass renormalization for a non-perturbative matching of HQET to three-flavor QCD', Proceedings of The 36th Annual International Symposium on Lattice Field Theory — PoS(LATTICE2018), 334. Sissa Medialab: Available at: https://doi.org/10.22323/1.334.0218
