Unitarity cuts and reduction to master integrals in d dimensions for one-loop amplitudes
By C. Anastasiou, R. Britto, Bo Feng, Z. Kunszt, Pierpaolo Mastrolia. 2006
150 citations recorded by the source corpus.
We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure four-dimensional cut-integration of tree amplitudes with a mass parameter, and the second step is applying dimensional shift identities to master integrals. This reduction is performed at the integrand level, so that coefficients can be read out algebraically.
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/975aada18131daa82ffac4f6330ce08ac7fef703
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In Atomic and Molecular Physics, and Optics
- R. Frederix
- M. Zaro
- Johan Alwall
- Olivier Mattelaer
- Stefan Dittmaier
- Fabio Maltoni
- Tim Stelzer
- Ansgar Denner
In Nuclear and High Energy Physics
- Cms Collaboration
- M. Zaro
- Atlas Collaboration
- Valentin Hirschi
- Fabio Maltoni
- R. Frederix
- Ansgar Denner
- Olivier Mattelaer
Citations in the corpus
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations (2014, methodology): “The two methods which have been used for complicated numerical simulations are bootstrap [17] and D-dimensional unitarity [19,20,23].”
- Direct extraction of one loop rational terms (2008, unknown): “Keywords: QCD, Hadron Colliders.”
- Electroweak radiative corrections for collider physics (2019, methodology): “An alternative is provided by D-dimensional unitarity methods [248–250].”