Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.191602
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Funding
- Harvard Milton Fund
- MOBILEX grant from the Danish Council for Independent Research
- STFC studentship
- STFC Consolidated Grant [ST/L000407/1]
- Marie Curie network GATIS of the European Union's Seventh Framework Programme FP7 under REA [317089]
- STFC [ST/L000407/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L000407/1] Funding Source: researchfish
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We use the soft-collinear bootstrap to construct the 8-loop integrand for the 4-point amplitude and 4-stress-tensor correlation function in planar maximally supersymmetric Yang-Mills theory. Both have a unique representation in terms of planar, conformal integrands grouped according to a hidden symmetry discovered for correlation functions. The answer we find exposes a fundamental tension between manifest locality and planarity with manifest conformality not seen at lower loops. For the first time, the integrand must include terms that are finite even on-shell and terms that are divergent even off-shell (so-called pseudoconformal integrals). We describe these novelties and their consequences in this Letter, and we make the full correlator and amplitude available as part of the Supplemental Material.
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