Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-08
JHEP 1101:059,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
83 pages, one reference added, typos corrected, agrees with published version
Scientific paper
10.1007/JHEP01(2011)059
We perform the integration of all iterated singly-unresolved subtraction terms, as defined in ref. [1], over the two-particle factorized phase space. We also sum over the unresolved parton flavours. The final result can be written as a convolution (in colour space) of the Born cross section and an insertion operator. We spell out the insertion operator in terms of 24 basic integrals that are defined explicitly. We compute the coefficients of the Laurent-expansion of these integrals in two different ways, with the method of Mellin-Barnes representations and sector decomposition. Finally, we present the Laurent-expansion of the full insertion operator for the specific examples of electron-positron annihilation into two and three jets.
Bolzoni Paolo
Somogyi Gábor
Trocsanyi Zoltan
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