# One-loop amplitudes of gluons in supersymmetric QCD

@article{Britto2005OneloopAO,
title={One-loop amplitudes of gluons in supersymmetric QCD},
author={Ruth Britto and Evgeny I. Buchbinder and Freddy Cachazo and Bo Feng},
journal={Physical Review D},
year={2005},
volume={72},
pages={065012}
}
• Published 14 March 2005
• Geology
• Physical Review D
One-loop amplitudes of gluons in supersymmetric Yang-Mills are four-dimensional cut-constructible. This means that they can be determined from their unitarity cuts. We present a new systematic procedure to explicitly carry out any finite unitarity cut integral. The procedure naturally separates the contributions from bubble, triangle and box scalar integrals. This technique allows the systematic calculation of $\mathcal{N}=1$ amplitudes of gluons. As an application we compute all next-to-MHV…
22 Citations

## Figures from this paper

Cut-constructible part of QCD amplitudes
• Mathematics
• 2006
Unitarity cuts are widely used in analytic computation of loop amplitudes in gauge theories such as QCD. We expand upon the technique introduced in hep-ph/0503132 to carry out any finite unitarity
The one-loop amplitude for six-gluon scattering
• Physics
• 2006
We present results for the six-gluon scattering amplitude at one-loop. Since our method is semi-numerical, it yields the result for arbitrary momenta and helicities of the external gluons. We
MHV one-loop amplitudes in Yang-Mills from generalised unitarity
• Physics
• 2008
In this letter, we exploit generalised unitarity in order to calculate the cut-constructible part of one-loop amplitudes in non-supersymmetric Yang-Mills theory. In particular, we rederive the
Generalised unitarity for dimensionally regulated amplitudes within FDF
We review the Four-Dimensional-Formulation variant of the Four-Dimensional-Helicity scheme, by showing two applications of this regularisation scheme. The first one is the computation of one-loop
The last of the finite loop amplitudes in QCD
• Physics
• 2005
We use on-shell recursion relations to determine the one-loop QCD scattering amplitudes with a massless external quark pair and an arbitrary number (n - 2) of positive-helicity gluons. These
Full colour for loop amplitudes in Yang-Mills theory
• Geology
Journal of High Energy Physics
• 2017
A bstractWe present a general method to account for full colour dependence Yang-Mills amplitudes at loop level. The method fits most naturally into the framework of multi-loop integrand reduction and
One-loop NMHV amplitudes involving gluinos and scalars in Script N = 4 gauge theory
• Physics, Geology
• 2005
We use Supersymmetric Ward Identities and quadruple cuts to generate n-pt NMHV amplitudes involving gluinos and adjoint scalars from purely gluonic amplitudes. We present a set of factors that can be
Analytic results for the one-loop NMHV Hqqgg amplitude
• Physics
• 2009
We compute the one-loop amplitude for a Higgs boson, a quark-antiquark pair and a pair of gluons of negative helicity, i.e. for the next-to-maximally helicity violating (NMHV) case,
Two-loop amplitudes of gluons and octa-cuts in Script N = 4 super Yang-Mills
• Mathematics
• 2005
After reduction techniques, two-loop amplitudes in = 4 super Yang-Mills theory can be written in a basis of integrals containing scalar double-box integrals with rational coefficients, though the
One-loop Higgs plus four gluon amplitudes: full analytic results
• Physics
• 2010
We consider one-loop amplitudes of a Higgs boson coupled to gluons in the limit of a large top quark mass. We treat the Higgs as the real part of a complex field ϕ that couples to the self-dual field