Physical Review Letters· 2012Q1
Scattering Amplitudes with Open Loops
- 1,156citations
- Q1SCImago
- 2012year
Short summary
A new 'open loop' technique generates one-loop scattering amplitudes, enabling faster and more stable calculations for collider processes.
AI-generated from the title and abstract; the full text is not read.
Key points
- Introduced a new 'open loop' technique for generating one-loop scattering amplitudes.
- Open loops are loop-momentum polynomials derived from tree algorithms.
- The method is fully flexible, very fast, and numerically stable.
- Enables precise predictions for a wide range of collider processes.
AI-generated from the title and abstract; the full text is not read.
Abstract
We introduce a new technique to generate scattering amplitudes at one loop. Traditional tree algorithms, which handle diagrams with fixed momenta, are promoted to generators of loop-momentum polynomials that we call open loops. Combining open loops with tensor-integral and Ossola-Papadopoulos-Pittau reduction results in a fully flexible, very fast, and numerically stable one-loop generator. As demonstrated with nontrivial applications, the open-loop approach will permit us to obtain precise predictions for a very wide range of collider processes.
The authors' abstract, as published at the source. Physical Review Letters, 2012 · DOI ↗
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Field: Nuclear and High Energy Physics
Nuclear and High Energy PhysicsPhysics and Astronomy