Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-16502
Dissertori, G; Gehrmann-De Ridder, A; Gehrmann, T; Glover, E W N; Heinrich, G; Stenzel, H (2008). e+e−→3 jets and event shapes at NNLO. Nuclear Physics B - Proceedings Supplements, 183:2-7.
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We report on the calculation of NNLO corrections to the 3-jet cross section and related event shape distributions in electron-positron annihilation. The corrections are sizable for all variables, however the magnitude of the corrections is substantially different for different observables. We observe that inclusion of the NNLO corrections yields a considerably better agreement between theory and experimental data both in shape and normalization of the event shape distributions in the region where the perturbative result is expected to hold. A new extraction of αs using the event shape variables up to NNLO yields a considerably better consistency between the observables indicating a stabilization of the perturbative corrections at this order.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||06 Mar 2009 11:13|
|Last Modified:||19 Aug 2014 13:42|
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