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String-motivated one-loop amplitudes in gauge theories with half-maximal supersymmetry

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arxiv 1611.03459 v2 pith:QW62QU3S submitted 2016-11-10 hep-th

classification hep-th
keywords amplitudesgaugehalf-maximalmadeone-loopstring-theorysupersymmetryalpha
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We compute one-loop amplitudes in six-dimensional Yang-Mills theory with half-maximal supersymmetry from first principles: imposing gauge invariance and locality on an ansatz made from string-theory inspired kinematic building blocks yields unique expressions for the 3- and 4-point amplitudes. We check that the results are reproduced in the field-theory limit $\alpha' \rightarrow 0$ of string amplitudes in K3 orbifolds, using simplifications made in a companion string-theory paper 1603.05262.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. One-loop open-string integrals from differential equations: all-order alpha'-expansions at n points

    hep-th 2019-08 conditional novelty 8.0 of 10

    A-cycle integrals at genus one satisfy linear differential equations whose Picard iterations yield all-order alpha-prime expansions in iterated Eisenstein integrals, with cusp values given by disk integrals.

  2. Two-Loop Scattering Amplitudes: Double-Forward Limit and Colour-Kinematics Duality

    hep-th 2019-08 conditional novelty 8.0 of 10

    Two-loop Yang-Mills and gravity integrands are constructed from tree-level trivalent diagrams via a double-forward limit, with multiplicity factors that make the loop-level colour-kinematics duality manifest.

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