期刊
PHYSICAL REVIEW LETTERS
卷 121, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.021602
关键词
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资金
- PRISMA Cluster of Excellence at Mainz university
- European Research Council (ERC) under the European Union [725110]
We consider finite superamplitudes of N = 1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them. Because of on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information. We show that in the five-particle case, the solution to the equations is uniquely fixed by the expected analytic behavior. We apply the method to a nonplanar two-loop five-particle integral.
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