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Scattering amplitudes from unitarity-based reduction algorithm at the integrand-level
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AI
DOI：10.1007/JHEP08(2010)080.png)
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摘要
En 中文
SAMURAI is a tool for the automated numerical evaluation of one-loop corrections to any scattering amplitudes within the dimensional-regularization scheme. It is based on the decomposition of the integrand according to the OPP-approach, extended to accommodate an implementation of the generalized d-dimensional unitarity-cuts technique, and uses a polynomial interpolation exploiting the Discrete Fourier Transform. samurai can process integrands written either as numerator of Feynman diagrams or as product of tree-level amplitudes. We discuss some applications, among which the 6- and 8-photon scattering in QED, and the 6-quark scattering in QCD. samurai has been implemented as a Fortran90 library, publicly available, and it could be a useful module for the systematic evaluation of the virtual corrections oriented towards automating next-to-leading order calculations relevant for the LHC phenomenology.
Keyword:
Jets
NLO Computations
QCD
Standard Model
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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引用论文
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