# Scattering amplitudes for eight gauge fields

@article{Hodges2006ScatteringAF, title={Scattering amplitudes for eight gauge fields}, author={Andrew P. Hodges}, journal={arXiv: High Energy Physics - Theory}, year={2006} }

We study the scattering of eight gauge fields, and give all the tree-level amplitudes in the helicity-conserved sector. New symmetries are noted, suggesting that significant further simplification can be achieved.

## 20 Citations

Twistors and amplitudes

- PhysicsPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2015

A brief review is given of why twistor geometry has taken a central place in the theory of scattering amplitudes for fundamental particles and the development of which has now led to the definition by Arkani-Hamed et al. of the ‘amplituhedron’.

Applications of Subleading-Color Amplitudes in N = 4 SYM Theory

- Geology
- 2011

A number of features and applications of subleading-color amplitudes of N=4 SYM theory are reviewed. Particular attention is given to the IR divergences of the subleading-color amplitudes, the…

Tree-level formalism

- Physics
- 2011

We review two novel techniques used to calculate tree-level scattering amplitudes efficiently: MHV diagrams, and on-shell recursion relations. For the MHV diagrams, we consider applications to…

A first course on twistors, integrability and gluon scattering amplitudes

- Physics
- 2010

These notes accompany an introductory lecture course on the twistor approach to supersymmetric gauge theories aimed at early stage PhD students. It was held by the author at the University of…

General split helicity gluon tree amplitudes in open twistor string theory

- Geology
- 2009

We evaluate all split helicity gluon tree amplitudes in open twistor string theory. We show that these amplitudes satisfy the BCFW recurrence relations restricted to the split helicity case and,…

Tree-level split helicity amplitudes in ambitwistor space

- Physics
- 2009

We study all tree-level split helicity gluon amplitudes by using the recently proposed Britto-Cachazo-Feng-Witten recursion relation and Hodges diagrams in ambitwistor space. We pick out the…

New expressions for gravitational scattering amplitudes

- Physics
- 2011

A bstractNew methods are introduced for evaluating tree-level gravitational scattering amplitudes. A new N=7 super-symmetric recursion yields amplitudes free from the spurious double poles of the N=8…

On perturbative field theory and twistor string theory

- Physics
- 2007

It is well-known that perturbative calculations in field theory can lead to far simpler answers than the Feynman diagram approach might suggest. In some cases scattering amplitudes can be constructed…

Eliminating spurious poles from gauge-theoretic amplitudes

- Physics
- 2009

A bstractThis note addresses the problem of spurious poles in gauge-theoretic scattering amplitudes. New twistor coordinates for the momenta are introduced, based on the concept of dual conformal…

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