Hadronic Correlators from All-point Quark Propagators
A. Duncan, E. Eichten, and J. Yoo
TL;DR
This paper introduces a method for computing all-point quark propagators in lattice QCD, enabling efficient calculation of complex correlators and application to various physical processes.
Contribution
The paper presents a novel approach for calculating all-point quark propagators, improving efficiency in lattice QCD computations of disconnected diagrams and full momentum-space correlators.
Findings
Efficient calculation of disconnected parts in lattice QCD
Extraction of chiral Lagrangian parameters from correlators
Analysis of the pion form factor and eta-prime in unquenched simulations
Abstract
A method for computing all-point quark propagators is applied to a variety of processes of physical interest in lattice QCD. The method allows, for example, efficient calculation of disconnected parts and full momentum-space 2 and 3 point functions. Examples discussed include: extraction of chiral Lagrangian parameters from current correlators, the pion form factor, and the unquenched eta-prime.
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