Simple Matrix Elements with Dynamical Fermions

TL;DR

This paper presents lattice QCD simulations with two flavors of sea quarks, analyzing decay constants of mesons and showing that sea quark effects are minimal at larger lattice spacings.

Contribution

It provides new results on meson decay constants using dynamical fermions with both staggered and Wilson formulations at larger lattice spacings.

Findings

Sea quark effects are small

Decay constants of vector and pseudoscalar mesons measured

Simulations done at relatively large lattice spacing

Abstract

We report on studies of simple matrix elements from simulations with two flavors of sea quarks, both staggered and Wilson. We show the decay constants of vector and pseudoscalar mesons. The effects of sea quarks are small. These simulations are done at relatively large lattice spacing compared to most quenched studies.