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Disconnected contributions to hadronic structure
Sara Collins, Gunnar Bali, Andrea Nobile +3
We present an update of an on-going project to determine the disconnected contributions to hadronic structure, specifically, the scalar matrix element and the quark contribution to…
Meson and baryon masses with low mode averaging
Gunnar Bali, Luca Castagnini, Sara Collins
We describe and test a method known in the literature as low mode averaging to improve Euclidean two-point functions in lattice QCD using the low-lying eigenmodes of the Wilson-Dir…
Hunting the static energy renormalon
Clemens Bauer, Gunnar Bali
We employ Numerical Stochastic Perturbation Theory (NSPT) together with twisted boundary conditions (TBC) to search for the leading renormalon in the perturbative expansion of the…
Static-light meson-meson potentials
Gunnar Bali, Martin Hetzenegger
We investigate potentials between pairs of static-light mesons in Nf=2 Lattice QCD, in different spin channels. The question of attraction and repulsion is particularly interesting…
Heavy quarkonium: progress, puzzles, and opportunities
N. Brambilla, S. Eidelman, B. K. Heltsley +64
A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experime…