Testing mixed action approaches to meson spectroscopy with twisted mass sea quarks
Joshua Berlin, David Palao, Marc Wagner
TL;DR
This paper compares three mixed action lattice QCD setups using twisted mass sea quarks to reduce discretization errors in meson spectroscopy, focusing on parity and isospin breaking effects.
Contribution
It introduces and evaluates three mixed action approaches with twisted mass sea quarks and different valence actions to improve mesonic spectral accuracy.
Findings
Reduced lattice discretization errors in mesonic spectra
Improved control over parity and isospin breaking
Comparison of valence quark actions effectiveness
Abstract
We explore and compare three mixed action setups with Wilson twisted mass sea quarks and different valence quark actions: (1) Wilson twisted mass, (2) Wilson twisted mass + clover and (3) Wilson + clover. Our main goal is to reduce lattice discretization errors in mesonic spectral quantities, in particular to reduce twisted mass parity and isospin breaking.
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