منابع مشابه
A subtraction scheme for computing QCD jet cross sections at NNLO: integrating the subtraction terms I
In previous articles we outlined a subtraction scheme for regularizing doublyreal emission and real-virtual emission in next-to-next-to-leading order (NNLO) calculations of jet cross sections in electron-positron annihilation. In order to find the NNLO correction these subtraction terms have to be integrated over the factorized unresolved phase space and combined with the two-loop corrections. ...
متن کاملStatus of jet cross sections to NNLO
In the near future the LHC experiments will provide us with a large sample of multi-particle final states. In order to extract information from this data, precise theoretical calculations are necessary. This implies to extend perturbative calculations for selected processes from next-toleading order (NLO) to next-to-next-to-leading order (NNLO) in the perturbative expansion in the strong coupli...
متن کاملA subtraction scheme for computing QCD jet cross sections at NNLO: regularization of real-virtual emission
We present a subtraction scheme for computing jet cross sections in electronpositron annihilation at next-to-next-to-leading order accuracy in perturbative QCD. In this second part we deal with the regularization of the real-virtual contribution to the NNLO correction.
متن کاملA subtraction scheme for computing QCD jet cross sections at NNLO: regularization of doubly-real emissions
We present a subtraction scheme for computing jet cross sections in electronpositron annihilation at next-to-next-to-leading order accuracy in perturbative QCD. In this first part we deal with the regularization of the doubly-real contribution to the NNLO correction.
متن کاملInfrared finite cross sections at NNLO
In recent years there has been significant progress in the calculation of two-loop amplitudes [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]. These amplitudes are needed for fully differential next-to-next-to-leading order (NNLO) calculations to improve the accuracy of theoretical predictions relevant to high-energy collider experiments. At the next-to-next-to-leading order level the ingredients ...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2010
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2010.08.017