9 papers
Unbiased Krylov subspace method for the extraction of ground state from lattice correlators
Ryutaro Tsuji, Shoji Hashimoto, Ryan Kellermann
Ground-state energy and matrix element are reconstructed from correlators in lattice QCD by diagonalizing transfer matrix within the Krylov subspace spanned by $\hat{T}^n…
Spectral reconstruction from Euclidean lattice correlators through singular value decomposition
Ryutaro Tsuji, Shoji Hashimoto
Reconstructing spectral densities from Euclidean lattice correlators requires an inverse Laplace transform, which is inherently ill-conditioned when applied to numerical data with…
Study on the systematic effects on inclusive semileptonic decays
Alessandro Barone, Ahmed Elgaziari, Shoji Hashimoto +4
We discuss the calculation of the inclusive semileptonic decay for the process using lattice QCD. This calculation could be decisive in understanding the lo…
Real radiative decays of heavy pseudoscalar mesons
Teseo San Jose, Yasumichi Aoki, Matteo Di Carlo +9
We report our ongoing lattice QCD study of radiative leptonic decays of the charged pseudoscalar mesons , , , and . We carry out our analysis on…
Inclusive and exclusive semileptonic decays of heavy mesons on the lattice
Zhi Hu, Alessandro Barone, Ahmed Elgaziari +4
We report the recent progress from our group in extracting observables of both inclusive and exclusive semileptonic heavy-meson decays directly from lattice QCD four-point correlat…
Inclusive semileptonic decays from lattice QCD: analysis of systematic effects
Ryan Kellermann, Alessandro Barone, Ahmed Elgaziari +4
Lattice QCD calculations of inclusive semileptonic decay rates involve new types of systematic effects, such as truncation errors in the estimation of energy integrals, or finite-v…