Measurement of event shapes and $\alpha_s$ in $e^+e^-$
Christoph Pahl
TL;DR
This paper presents measurements of the strong coupling constant _s using event shape data from pta and p, employing advanced theoretical calculations to improve precision.
Contribution
It provides new _s measurements based on recent NLLO calculations and moment analyses with NLO and power corrections, enhancing the accuracy of _s determination.
Findings
_s values consistent with previous measurements
Improved theoretical models reduce uncertainties
Enhanced understanding of QCD in +e- collisions
Abstract
We report results on measurements of the strong coupling \as from event shape data at \Petra and \Lep. These include analyses of their distributions employing the recent NLLO calculations and analyses of their moments using NLO and power correction predictions.
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Taxonomy
TopicsGeometry and complex manifolds · Medical Imaging Techniques and Applications · Geometric Analysis and Curvature Flows