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Abstract: This paper gives detailed information on the structure of the infraredsingularities for the process e+ e-> 3 jets at next-to-next-to-leading orderin perturbation theory. Particular emphasis is put on singularities associatedto soft gluons. The knowledge of the singularity structure allows theconstruction of appropriate subtraction terms, which in turn can be implementedinto a numerical Monte Carlo program.



Autor: Stefan Weinzierl

Fuente: https://arxiv.org/







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