92 citations · 112 across the 5 of their papers we have counts for
26 papers · 1 filter
Strange quark content of the nucleon
Ronald Babich, Richard Brower, Michael Clark +3
We discuss the calculation of disconnected diagrams needed for determining the strange quark content of the nucleon on the lattice. We present results for the strange scalar form f…
Initial guesses for multi-shift solvers
James C. Osborn
I will present a method for providing initial guesses to a linear solver for systems with multiple shifts. This can also be extended to the case of multiple sources each with a dif…
Phase Diagram of the Dirac Spectrum at Nonzero Chemical Potential
J. C. Osborn, K. Splittorff, J. J. M. Verbaarschot
The Dirac spectrum of QCD with dynamical fermions at nonzero chemical potential is characterized by three regions, a region with a constant eigenvalue density, a region where the e…
Strange quark contribution to nucleon form factors
Ronald Babich, Richard Brower, Michael Clark +3
We discuss methods for the calculation of disconnected diagrams and their application to various form factors of the nucleon. In particular, we present preliminary results for the…
Adaptive Multigrid Algorithm for Lattice QCD
J. Brannick, R. C. Brower, M. A. Clark +2
We present a new multigrid solver that is suitable for the Dirac operator in the presence of disordered gauge fields. The key behind the success of the algorithm is an adaptive pro…
Chiral phase transition in lattice QCD as a metal-insulator transition
Antonio M. Garcia-Garcia, James C. Osborn
We investigate the lattice QCD Dirac operator with staggered fermions at temperatures around the chiral phase transition. We present evidence of a metal-insulator transition in the…