The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
Two-loop six-gluon maximally helicity violating amplitude in maximally supersymmetric Yang-Mills theory
Open accessAbstract
We give a representation of the parity-even part of the planar two-loop six-gluon maximally helicity violating (MHV) amplitude of $\mathcal{N}=4$ super-Yang-Mills theory, in terms of loop-momentum integrals with simple dual conformal properties. We evaluate the integrals numerically in order to test directly the Anastasiou-Bern-Dixon-Kosower/Bern-Dixon-Smirnov all-loop ansatz for planar MHV amplitudes. We find that the ansatz requires an additive remainder function, in accord with previous indications from strong-coupling and Regge limits. The planar six-gluon amplitude can also be compared with the hexagonal Wilson loop computed by Drummond, Henn, Korchemsky, and Sokatchev in arXiv:0803.1466. After accounting for differing singularities and other constants independent of the kinematics, we find that the Wilson loop and MHV-amplitude remainders are identical, to within our numerical precision. This result provides nontrivial confirmation of a proposed $n$-point equivalence between Wilson loops and planar MHV amplitudes, and suggests that an additional mechanism besides dual conformal symmetry fixes their form at six points and beyond.
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Cites
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Grassmannian Geometry of Scattering Amplitudes
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Factorization constraints for soft anomalous dimensions in QCD scattering amplitudes
Gardi, E., & Magnea, L. (2009) · Journal of High Energy Physics · doi:10.1088/1126-6708/2009/03/079 · Cited by 353
Metadata
- Authors
- Bern, Z., Dixon, L. J., Kosower, D. A., Roiban, R., Spradlin, M., Vergu, C., & Volovich, A.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2008-08-11
- Volume
- 78
- Issue
- 4
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2063740862
- Cited by
- 342
- References
- 44
- FWCI
- 26.56
- Type
- journal article
- Language
- en
- Open access
- green
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