Real radiation at NNLO: e^+e^- to 2 jets through O(alpha_s^2)

Details Real radiation at NNLO: e^+e^- to 2 jets through O(alpha_s^2) Real radiation at NNLO: e^+e^- to 2 jets through O(alpha_s^2)

2004-02-26

arxiv.org/abs/hep-ph/0402280v1

Phys.Rev.Lett. 93 (2004) 032002

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.93.032002

We present a calculation of the differential two jet cross section in e^+e^- annihilation through next-to-next-to-leading order in the strong coupling constant alpha_s. The calculation is performed using a new method for dealing with real radiation suggested by us recently. For the first time, the two jet event rate is computed directly, without any reference to the inclusive cross-section e^+e^- to hadrons. We also calculate the energy distribution of the leading jet in e^+e^- to 2 jets, and find significant modifications of the shape of this distribution at NNLO.

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