# Full QCD with dynamical Wilson fermions on a 24^3 x 40-lattice -- a feasibility study

## TL;DR

This paper presents a feasibility study of lattice QCD simulations with dynamical Wilson fermions on a 24^3 x 40 lattice, aiming to explore light sea-quark effects with larger volumes and finer resolutions using high-performance computing.

## Contribution

It demonstrates the feasibility of approaching the chiral limit in lattice QCD with Wilson fermions on larger volumes using the APE Tower supercomputer.

## Key findings

- Identified a realistic working point with a 2 fm^3 volume.
- Achieved a chirality characterized by 1/(a m_pi) = 5.6.
- Validated the use of the APE Tower for such simulations.

## Abstract

The investigation of light sea-quark effects in lattice QCD with dynamical Wilson fermions requires both larger physical volumes and finer lattice resolutions than achieved previously. As high-end supercomputers like the 512-node APE Tower provide the compute power to perform a major step towards the chiral limit (T-chi-L), we have launched a feasibility study on a 24^3 x 40 lattice. We approach the chiral limit--while refining the resolution--, using the standard Wilson fermion action. Following previous work, our Hybrid Monte Carlo simulation runs at beta=5.6 and two kappa-values, 0.1575 and 0.158. From our study, we are confident that, for the APE Tower, a realistic working point has been found corresponding to a volume of 2 fm^3, with chirality characterized by 1/(a m_pi) = 5.6.