Twisted mass lattice QCD: Recent developments and results

TL;DR

This paper reviews recent advances in twisted mass lattice QCD, highlighting its potential for efficient large-scale simulations at small pion masses and discussing ongoing challenges like flavor breaking effects.

Contribution

It presents recent theoretical and numerical developments in twisted mass QCD, emphasizing its advantages and addressing open issues for future research.

Findings

Twisted mass QCD enables efficient large-scale simulations at small pion masses.

Matching with chiral perturbation theory is feasible using this approach.

Open issues such as flavor breaking effects are identified and discussed.

Abstract

I review recent theoretical developments and numerical results of twisted mass QCD. I argue that, combined with an efficient algorithm, twisted mass QCD can be an attractive QCD lattice action, to perform large scale simulations at small pion masses, where a matching with chiral perturbation theory can be performed. Open issues like flavour breaking effects are also addressed.