Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.161301
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Funding
- Perimeter Institute for Theoretical Physics
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research Innovation
- NSERC of Canada
- MEDT of Ontario
- IAS
- STFC [ST/G000581/1, ST/J000434/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000434/1, ST/G000581/1] Funding Source: researchfish
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This Letter presents a new formula which is conjectured to yield all tree amplitudes in N = 8 supergravity. The amplitudes are described in terms of higher degree rational maps to twistor space. The resulting expression has manifest N = 8 supersymmetry and is manifestly permutation symmetric in all external states. It depends monomially on the infinity twistor that explicitly breaks conformal symmetry to Poincare symmetry. We have carried out various nontrivial analytic and numerical checks of the formula for up to eight external states with arbitrary helicities. DOI: 10.1103/PhysRevLett.110.161301
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