Next-to-leading order calculation of four-jet observables in electron-positron annihilation

Details Next-to-leading order calculation of four-jet observables in electron-positron annihilation Next-to-leading order calculation of four-jet observables in electron-positron annihilation

1998-06-09

arxiv.org/abs/hep-ph/9806317v2

Phys.Rev. D59 (1999) 014020; Erratum-ibid. D62 (2000) 099902

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 10 figures, 3 tables, revtex.sty

Scientific paper

10.1103/PhysRevD.59.014020

The production of four jets in electron-positron annihilation allows for measuring the strong coupling and the underlying group structure of the strong interaction simultaneously. This requires next-to-leading order perturbative prediction for four-jet observables. In this paper we describe the theoretical formalism of such a calculation with sufficient details. We use the dipole method to construct a Monte Carlo program that can be used for calculating any four-jet observable at the NLO accuracy. As new results, we present the NLO prediction for the thrust minor, y_4 and C parameter (at C > 0.75) four-jet shape variables and the four-jet rates with the Cambridge jet clustering algorithm.

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