Outputs (6)

Cosmological Scattering Equations (2021)
Journal Article
Gomez, H., Lipinski Jusinskas, R., & Lipstein, A. (2021). Cosmological Scattering Equations. Physical Review Letters, 127(25), Article 251604. https://doi.org/10.1103/physrevlett.127.251604

We propose a worldsheet formula for tree-level correlation functions describing a scalar field with arbitrary mass and quartic self-interaction in de Sitter space, which is a simple model for inflationary cosmology. The correlation functions are loca... Read More about Cosmological Scattering Equations.

Instanton worldlines in five-dimensional Ω-deformed gauge theory (2021)
Journal Article
Lambert, N., Lipstein, A., Mouland, R., & Richmond, P. (2021). Instanton worldlines in five-dimensional Ω-deformed gauge theory. Journal of High Energy Physics, 2021(9), Article 086. https://doi.org/10.1007/jhep09%282021%29086

We discuss the Bosonic sector of a class of supersymmetric non-Lorentzian five-dimensional gauge field theories with an SU(1,3) conformal symmetry. These actions have a Lagrange multiplier which imposes a novel Ω-deformed anti-self-dual gauge field c... Read More about Instanton worldlines in five-dimensional Ω-deformed gauge theory.

Towards the Virasoro-Shapiro amplitude in AdS5×S5 (2021)
Journal Article
Abl, T., Heslop, P., & Lipstein, A. E. (2021). Towards the Virasoro-Shapiro amplitude in AdS5×S5. Journal of High Energy Physics, 2021(4), Article 237. https://doi.org/10.1007/jhep04%282021%29237

We propose a systematic procedure for obtaining all single trace 1/2-BPS correlators in N = 4 super Yang-Mills corresponding to the four-point tree-level amplitude for type IIB string theory in AdS5 × S5. The underlying idea is to compute generalised... Read More about Towards the Virasoro-Shapiro amplitude in AdS5×S5.

Five-dimensional non-Lorentzian conformal field theories and their relation to six-dimensions (2021)
Journal Article
Lambert, N., Lipstein, A., Mouland, R., & Richmond, P. (2021). Five-dimensional non-Lorentzian conformal field theories and their relation to six-dimensions. Journal of High Energy Physics, 2021(3), Article 53. https://doi.org/10.1007/jhep03%282021%29053

We study correlation functions in five-dimensional non-Lorentzian theories with an SU(1, 3) conformal symmetry. Examples of such theories have recently been obtained as Ω-deformed Yang-Mills Lagrangians arising from a null reduction of six-dimensiona... Read More about Five-dimensional non-Lorentzian conformal field theories and their relation to six-dimensions.

Color/kinematics duality in AdS4 (2021)
Journal Article
Armstrong, C., Lipstein, A. E., & Mei, J. (2021). Color/kinematics duality in AdS4. Journal of High Energy Physics, 2021(2), Article 194. https://doi.org/10.1007/jhep02%282021%29194

In flat space, the color/kinematics duality states that perturbative Yang-Mills amplitudes can be written in such a way that kinematic numerators obey the same Jacobi relations as their color factors. This remarkable duality implies BCJ relations for... Read More about Color/kinematics duality in AdS4.

N = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space (2021)
Journal Article
Armstrong, C., Farrow, J. A., & Lipstein, A. E. (2021). N = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space. Journal of High Energy Physics, 2021(1), Article 181. https://doi.org/10.1007/jhep01%282021%29181

We derive an on-shell diagram recursion for tree-level scattering amplitudes in N = 7 supergravity. The diagrams are evaluated in terms of Grassmannian integrals and momentum twistors, generalising previous results of Hodges in momentum twistor space... Read More about N = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space.