Determination of alphas from the QCD static energy: an update
Abstract
We present an update of our determination of the strong coupling alphas from the quantum chromodynamics static energy. This updated analysis includes new lattice data, at smaller lattice spacings and reaching shorter distances, the use of better suited perturbative expressions to compare with data in a wider distance range, and a comprehensive and detailed estimate of the error sources that contribute to the uncertainty of the final result. Our updated value for alphas at the Z-mass scale, MZ, is alphas(MZ)=0.1166+0.0012-0.0008, which supersedes our previous result.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.