All Outputs (4)

Lattice Gerbe Theory (2014)
Journal Article
Lipstein, A. E., & Reid-Edwards, R. A. (2014). Lattice Gerbe Theory. Journal of High Energy Physics, 2014(09), Article 034. https://doi.org/10.1007/jhep09%282014%29034

We formulate the theory of a 2-form gauge field on a Euclidean spacetime lattice. In this approach, the fundamental degrees of freedom live on the faces of the lattice, and the action can be constructed from the sum over Wilson surfaces associated wi... Read More about Lattice Gerbe Theory.

Ambitwistor Strings in Four Dimensions (2014)
Journal Article
Geyer, Y., Lipstein, A. E., & Mason, L. (2014). Ambitwistor Strings in Four Dimensions. Physical Review Letters, 113(8), Article 081602. https://doi.org/10.1103/physrevlett.113.081602

We develop ambitwistor string theories for four dimensions to obtain new formulas for tree-level gauge and gravity amplitudes with arbitrary amounts of supersymmetry. Ambitwistor space is the space of complex null geodesics in complexified Minkowski... Read More about Ambitwistor Strings in Four Dimensions.

Scattering amplitudes of massive N=2 gauge theories in three dimensions. (2014)
Journal Article
Agarwal, A., Lipstein, A. E., & Young, D. (2014). Scattering amplitudes of massive N=2 gauge theories in three dimensions. Physical Review D, 89(4), Article 045020. https://doi.org/10.1103/physrevd.89.045020

We study the scattering amplitudes of mass-deformed Chern-Simons theories and Yang-Mills-Chern-Simons theories with N=2 supersymmetry in three dimensions. In particular, we derive the on-shell supersymmetry algebras which underlie the scattering matr... Read More about Scattering amplitudes of massive N=2 gauge theories in three dimensions..

From d logs to dilogs; the super Yang-Mills MHV amplitude revisited (2014)
Journal Article
Lipstein, A. E., & Mason, L. (2014). From d logs to dilogs; the super Yang-Mills MHV amplitude revisited. Journal of High Energy Physics, 2014(01), Article 169. https://doi.org/10.1007/jhep01%282014%29169

Recently, loop integrands for certain Yang-Mills scattering amplitudes and correlation functions have been shown to be systematically expressible in dlog form, raising the possibility that these loop integrals can be performed directly without Feynma... Read More about From d logs to dilogs; the super Yang-Mills MHV amplitude revisited.