1 citations · 1 across the 10 of their papers we have counts for
6 papers · 1 filter
at the SU(3)-flavour-symmetric point I: Methodology and strong phase determination
Matthew Black, Felix Erben, Maxwell T. Hansen +5
We present part one of an SU(3)-flavour-symmetric lattice QCD calculation of the amplitude for a -meson decaying to a final state in the 27-dimensional irreducible represen…
Gradient Flow Renormalization Schemes for Composite Fermion Operators
Matthew Black, Anna Hasenfratz, Oliver Witzel
We introduce gradient flow (GF) normalization prescriptions for fermionic composite operators in which the flowed fermion wavefunction renormalization factor is fixed nonperturbati…
Heavy-Meson Bag Parameters using Gradient Flow
Matthew Black, Robert V. Harlander, Jonas T. Kohnen +4
We demonstrate the use of the gradient flow combined with the short flow-time expansion (GF+SFTX) as a renormalization procedure for four-quark operator matrix elements and associa…
Bag Parameters for Heavy Meson Lifetimes
Matthew Black, Robert V. Harlander, Jonas T. Kohnen +4
We calculate the dimension-six four-quark matrix elements describing heavy-meson lifetime ratios using the gradient flow with its short flow-time expansion as a renormalizat…
Extracting form factors
Anastasia Boushmelev, Matthew Black, Oliver Witzel
Semileptonic decays are of great phenomenological interest because they allow to determine e.g. CKM matrix elements or test lepton flavor universality. Taking advantage o…
scattering as a step towards from Lattice QCD
Felix Erben, Matthew Black, Peter Boyle +7
Rare decays provide some of the most sensitive tests of the Standard Model and require precise and systematically improvable hadronic input from lattice QCD. F…