Next-to-Leading-Order Results for Five, Six, and Seven Jets in Electron-Positron Annihilation
نویسندگان
چکیده
منابع مشابه
Electron - Positron Annihilation into Four Jets at Next - to - Leading Order in as 1
We calculate the rate for e+ eannihilation into four jets at next-to-leading order in perturbative QCD, but omitting terms that are suppressed by one or more powers of l/iV~, where N. is the number of colors. The O(a~) 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 ...
متن کاملElectron - Positron Annihilation into Four Jets at Next - to - Leading Order in α
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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/N2 c , where Nc is the number of colors. The O(αs) corrections depend strongly on the jet resolution parameter ycut and on the clustering and recombination schemes, and they substantially improve the agreement between theory a...
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We discuss the production of two hadrons in e + e − annihilation within the framework of perturbative QCD. The cross section for this process is calculated to next-to-leading order accuracy with a selection of variables that allows the consideration of events where the two hadrons are detected in the same jet. In this configuration we contemplate the possibility that the hadrons come from a dou...
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Given a next-to-leading order calculation, we show how to set up a computer program, which generates a sequence of unweighted momentum configurations, each configuration containing either n or n+1 four-vectors, such that for any infrared safe observable the average over these configurations coincides with the NLO calculation up to errors of order yres. The core of the algorithm is a method to c...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2012
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.108.032005