# Progress report on hadron spectroscopy with improved actions

## TL;DR

This paper reports on measurements of quenched light hadron masses using various improved lattice actions, comparing results from blocked and unblocked lattices to evaluate the effectiveness of different Dirac discretizations.

## Contribution

It introduces a systematic comparison of multiple improved lattice discretizations for hadron spectroscopy, providing a ranking of their performance.

## Key findings

- Blocked lattices yield more accurate hadron mass measurements.
- Certain Dirac discretizations outperform others in the ranking.
- Comparison with unblocked lattices highlights the improvements achieved.

## Abstract

Quenched light hadron masses are measured on blocked lattices, using 6 different lattice discretizations of the Dirac operator. Results are compared with those of unblocked lattices, allowing for a ``ranking'' of the Dirac discretizations.