Determination of Lambda in quenched and full QCD - an update
M. G\"ockeler, R. Horsley, A. C. Irving, D. Pleiter, P. E. L. Rakow,, G. Schierholz, H. St\"uben
TL;DR
This paper updates the determination of the Lambda parameter in QCD, focusing on two-flavor dynamical quarks with improved data and smaller lattice spacings, confirming previous results.
Contribution
It provides an improved and more precise calculation of Lambda in QCD with two dynamical quark flavors using $O(a)$ improved Wilson fermions.
Findings
Little change from previous Lambda values
Increased data at smaller lattice spacings
Enhanced precision in two-flavor QCD calculations
Abstract
We present an update on our previous determination of the Lambda parameter in QCD. The main emphasis is on results for two flavours of light dynamical quarks, where we can now almost double the amount of data used, including values at smaller lattice spacings. The calculations are performed using improved Wilson fermions. Little change is found to previous numerical values.
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