Constructing QCD one-loop amplitudes
arXiv:0802.1534
Abstract
In the context of constructing one-loop amplitudes using a unitarity bootstrap approach we discuss a general systematic procedure for obtaining the coefficients of the scalar bubble and triangle integral functions of one-loop amplitudes. Coefficients are extracted after examining the behaviour of the cut integrand as the unconstrained parameters of a specifically chosen parametersiation of the cut loop momentum approach infinity.
5 Pages. To appear in the proceedings of the 8th International Symposium on Radiative Corrections (RADCOR 2007): Application of Quantum Field Theory to Phenomenology, Florence, Italy, 1-6 Oct 2007
References in corpus (14)
- New Recursion Relations for Tree Amplitudes of Gluons
- Generalized Unitarity and One-Loop Amplitudes in N=4 Super-Yang-Mills
- CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes
- Direct extraction of one-loop integral coefficients
- Full one-loop amplitudes from tree amplitudes
- A Numerical Unitarity Formalism for Evaluating One-Loop Amplitudes
- On-Shell Recurrence Relations for One-Loop QCD Amplitudes
- Bootstrapping Multi-Parton Loop Amplitudes in QCD
- The Cut-Constructible Part of QCD Amplitudes
- On Triple-Cut of Scattering Amplitudes
- Unitarity Cuts with Massive Propagators and Algebraic Expressions for Coefficients
- Algebraic evaluation of rational polynomials in one-loop amplitudes
- The rational parts of one-loop QCD amplitudes I: The general formalism
- One-loop Integral Coefficients from Generalized Unitarity