Adriani, O. ; Aguilar-Benitez, M. ; Ahlen, S. ; Gurtu, A. ; et., al (1992) Determination of αs from hadronic event shapes measured on the Z0 resonance Physics Letters B, 284 (3-4). pp. 471-481. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0370-2693(92)90463-E
Abstract
We present a study of the global event shape variables thrust and heavy jet mass, of energy-energy correlations and of jet multiplicities based on 250 000 hadronic Z0 decays. The data are compared to new QCD calculations including resummation of leading and next-to-leading logarithms to all orders. We determine the strong coupling constant αs (91.2 GeV) = 0.125±0.003 (exp) ± 0.008 (theor). The first error is the experimental uncertainty. The second error is due to hadronization uncertainties and approximations in the calculations of the higher order corrections.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83328 |
| Deposited On: | 20 Feb 2012 06:13 |
| Last Modified: | 20 Feb 2012 06:13 |
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