| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5493746 | Nuclear and Particle Physics Proceedings | 2017 | 5 Pages |
Abstract
Five measurements of the top quark pair production cross section from hadron colliders are compared with the theoretical prediction (up the next-to-next-to-leading order in QCD) in order to determine the strong coupling constant αs. The determination is performed for several PDF sets. The individual determinations of αs are combined to form a single best estimate using the Best Linear Unbiased Estimate (BLUE) procedure. Preliminary combined results indicate a higher value of αs than that determined in a previous extraction of αs from the top quark pair production cross section.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
S. Bethke, G. Dissertori, T. Klijnsma, G.P. Salam,