ABJM Amplitudes in U-gauge and a Soft Theorem
arXiv:1508.07975 · doi:10.1007/JHEP11(2015)088
Abstract
We report progress in computing and analyzing all tree amplitudes in ABJM theory. Inspired by the isomorphism between the orthogonal Grassmannian and the pure spinor geometries, we adopt a new gauge, called u-gauge, for evaluating the orthogonal Grassmannian integral for ABJM amplitudes. We carry out the integral explicitly for the 8-point amplitude and obtain the complete supersymmetric amplitude. The physical and spurious poles arise from the integral as expected from on-shell diagrams. We also derive a double scalar soft theorem of ABJM amplitudes and verify it for known amplitudes.
35 pages, 6 figures; v2. minor corrections
References in corpus (8)
- N=6 superconformal Chern-Simons-matter theories, M2-branes and their gravity duals
- Evidence for a New Soft Graviton Theorem
- All tree-level amplitudes in N=4 SYM
- Studies of the ABJM Theory in a Formulation with Manifest SU(4) R-Symmetry
- Yangian Invariant Scattering Amplitudes in Supersymmetric Chern-Simons Theory
- Dual Superconformal Symmetry of N=6 Chern-Simons Theory
- Amplitudes of 3D and 6D Maximal Superconformal Theories in Supertwistor Space
- Grassmannians for scattering amplitudes in 4d SYM and 3d ABJM
Cited by in corpus (5)
- Infinite-Dimensional Fermionic Symmetry in Supersymmetric Gauge Theories
- Subsubleading soft theorems of gravitons and dilatons in the bosonic string
- Double Soft Theorems and Shift Symmetry in Nonlinear Sigma Models
- Scattering Amplitudes and the Double Copy in Topologically Massive Theories
- Note on Identities Inspired by New Soft Theorems