Testing the stochastic LapH method in the twisted mass formulation
Christian Jost, Bastian Knippschild, Carsten Urbach, Falk, Zimmermann
TL;DR
This paper introduces the stochastic LapH method applied to twisted mass lattice QCD, demonstrating its effectiveness in computing disconnected contributions to flavor singlet mesons and comparing it to traditional noise methods.
Contribution
It is the first application of the stochastic LapH method in the twisted mass formulation for lattice QCD calculations.
Findings
sLapH effectively computes disconnected contributions.
sLapH outperforms standard volume noise methods.
Results are based on 2+1+1 flavor gauge configurations.
Abstract
We present first results using the stochastic Laplace-Heaviside (sLapH) method in the twisted mass formulation. The calculations are performed on gauge configurations provided by the European Twisted Mass (ETM) collaboration with 2+1+1 dynamical quark flavours at a single value of the lattice spacing. In particular, we compute disconnected contributions to flavour singlet pseudo-scalar mesons and compare sLapH to standard volume noise methods.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research