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arXiv · 0802.0813

Jet rates in electron-positron annihilation at O(α_s^3) in QCD

A. Gehrmann-De Ridder·T. Gehrmann·E. W. N. Glover·G. Heinrich
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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 (NNLO) in perturbation theory while the two-jet rate is obtained at next-to-next-to-next-to-leading order (N$^3$LO). 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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A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover, G. Heinrich. 2008-03-31. Jet rates in electron-positron annihilation at O(α_s^3) in QCD. https://doi.org/10.1103/physrevlett.100.172001

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