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Enhanced Gauge Groups in N=4 Topological Amplitudes and Lorentzian Borcherds Algebras
Gauge Groups Topological Amplitudes Lorentzian Borcherds Algebras
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2011/9/30
Abstract: We continue our study of algebraic properties of N=4 topological amplitudes in heterotic string theory compactified on T^2, initiated in arXiv:1102.1821. In this work we evaluate a particula...
Closed-Form Decomposition of One-Loop Massive Amplitudes
NLO Computations QCD.
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2018/4/20
We present formulas for the coefficients of 2-, 3-, 4- and 5-point master integrals for oneloop massive amplitudes. The coefficients are derived from unitarity cuts in D dimensions. The input paramete...
Unitarity cuts and reduction to master integrals in d dimensions for one-loop amplitudes
NLO Computations QCD
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2018/4/20
We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure ...
Unitarity cuts and reduction to master integrals in d dimensions for one-loop amplitudes
NLO Computations QCD
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2018/4/20
We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure ...
Integral Coefficients for One-Loop Amplitudes
NLO Computations QCD
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2018/4/20
We present a set of algebraic functions for evaluating the coefficients of the scalar integral basis of a general one-loop amplitude. The functions are derived from unitarity cuts, but the complete cu...