189 citations · 1.1k across the 22 of their papers we have counts for
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hep-th2014★ 84 cited
Ambitwistor strings at null infinity and subleading soft limits
Yvonne Geyer, Arthur E. Lipstein, Lionel Mason
The relationships between extended BMS symmetries at null infinity and Weinberg's soft theorems for gravitons and photons together with their subleading generalizations are develop…
hep-th2014★ 171 cited
Ambitwistor strings in 4-dimensions
Yvonne Geyer, Arthur E. Lipstein, Lionel J. Mason
We develop ambitwistor string theories for 4 dimensions to obtain new formulae for tree-level gauge and gravity amplitudes with arbitrary amounts of supersymmetry. Ambitwistor spac…