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This article reviews on-shell methods for analytic computation of loop amplitudes, emphasizing techniques based on unitarity cuts.
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DIMENSIONAL REGULARIZATION OF MASS AND INFRARED SINGULARITIES IN TWO LOOP ON-SHELL VERTEX FUNCTIONS
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One loop N gluon amplitudes with maximal helicity violation via collinear limits
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A Simple method for multileg loop calculations
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One loop tensor integrals in dimensional regularization
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A Simple method for multileg loop calculations. 2. A General algorithm
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One loop amplitudes for e+ e- to four partons
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Reduction of multileg loop integrals
S. Weinzierl · 1999
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Regularization and Renormalization of Gauge Fields
Gerard ’t Hooft and M.J.G. Veltman · 1999
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A Two loop four gluon helicity amplitude in QCD
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High precision calculation of multiloop Feynman integrals by difference equations
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Dimensionally regulated one loop box scalar integrals with massless internal lines
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Calculation of master integrals by difference equations
S. Laporta · 2001
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One loop corrections to four point functions with two external massive fermions and two external massless partons
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Formulae for a numerical computation of one-loop tensor integrals
Roberto Pittau · 2004
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MHV vertices and tree amplitudes in gauge theory
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Perturbative gauge theory as a string theory in twistor space
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Automatic integral reduction for higher order perturbative calculations
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Two-loop g — > > gg splitting amplitudes in QCD
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Two loop splitting functions in QCD
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Non-supersymmetric loop amplitudes and MHV vertices
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On-shell recurrence relations for one-loop QCD amplitudes
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All Next-to-maximally-helicity-violating one-loop gluon amplitudes in N=4 super-Yang-Mills theory
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The MHV QCD Lagrangian
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The six gluon one-loop amplitude
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The six-photon amplitude
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Unitarity Method with Spurious Pole
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Direct Extraction Of One Loop Rational Terms
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Masses, fermions and generalized D-dimensional unitarity
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Solving for tadpole coefficients in one-loop amplitudes
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Multi-Parton Scattering Amplitudes via On-Shell Methods
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One-Loop Six Gluon Amplitude
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Analytic results for the one-loop NMHV Hqqgg amplitude
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Amplitudes and Spinor-Helicity in Six Dimensions
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