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Jet rates in electron-positron annihilation at O(α_{s}^{3}) in QCD


Gehrmann-De Ridder, A; Gehrmann, T; Glover, E W N; Heinrich, G (2008). Jet rates in electron-positron annihilation at O(α_{s}^{3}) in QCD. Physical Review Letters, 100(17):172001-172005.

Abstract

We compute production rates for two, three, four, and five jets in electron-positron annihilation at the third order in the QCD coupling constant. At this order, three-jet production is described to next-to-next-to-leading order in perturbation theory while the two-jet rate is obtained at next-to-next-to-next-to-leading order. Our results yield an improved perturbative description of the dependence of jet multiplicity on the jet resolution parameter ycut, particularly at small values of ycut.

Abstract

We compute production rates for two, three, four, and five jets in electron-positron annihilation at the third order in the QCD coupling constant. At this order, three-jet production is described to next-to-next-to-leading order in perturbation theory while the two-jet rate is obtained at next-to-next-to-next-to-leading order. Our results yield an improved perturbative description of the dependence of jet multiplicity on the jet resolution parameter ycut, particularly at small values of ycut.

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Additional indexing

Other titles:Jet rates in electron-positron annihilation at O(\alpha_s^3) in QCD
Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:May 2008
Deposited On:10 Mar 2009 08:34
Last Modified:21 Nov 2017 14:04
Publisher:American Physical Society
ISSN:0031-9007
Publisher DOI:https://doi.org/10.1103/PhysRevLett.100.172001
Related URLs:http://arxiv.org/abs/0802.0813

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Download PDF  'Jet rates in electron-positron annihilation at O(α_{s}^{3}) in QCD'.
Preview
Content: Accepted Version
Filetype: PDF (Accepted manuscript, Version 1)
Size: 134kB