Electron-Positron Annihilation into Four Jets at Next-to-Leading Order in $α_s$

Details Electron-Positron Annihilation into Four Jets at Next-to-Leading Order in $α_s$ Electron-Positron Annihilation into Four Jets at Next-to-Leading Order in $α_s$

1996-09-24

arxiv.org/abs/hep-ph/9609460v2

Phys.Rev.Lett.78:811-814,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 7 pages with 3 encapsulated figures. Minor changes and references added

Scientific paper

10.1103/PhysRevLett.78.811

We calculate the rate for $e^+e^-$ annihilation into four jets at next-to-leading order in perturbative QCD, but omitting terms that are suppressed by one or more powers of $1/\Nc^2$, where $\Nc$ is the number of colors. The $\cO(\alpha_s^3)$ corrections depend strongly on the jet resolution parameter $\ycut$ and on the clustering and recombination schemes, and they substantially improve the agreement between theory and data.

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