307 citations · 585 across the 9 of their papers we have counts for
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On-Shell Perspectives on the Massless Limit of Massive Supergravity
Daniel J Burger, Nathan Moynihan, Jeff Murugan
Massive gravity exhibits a famous discontinuity in its 2-point linearized amplitude for t-channel scattering of gravitational sources, in the limit. In essence, the sourc…
On-Shell Electric-Magnetic Duality and the Dual Graviton
Nathan Moynihan, Jeff Murugan
Using on-shell amplitude methods, we explore 4-dimensional Electric-Magnetic duality and its double copy. We show explicitly that the on-shell scattering amplitudes know about `dua…
Amplitudes, Gravity and Classical Discontinuities
Daniel J. Burger, Raul Carballo-Rubio, Nathan Moynihan +2
On-shell methods have revitalized interest in scattering amplitudes which have, in turn, shed some much needed light on the structure of quantum field theories. These developments…
Comments on scattering in massive gravity, vDVZ and BCFW
Nathan Moynihan, Jeff Murugan
Armed with the latest technology in the computation of scattering amplitudes involving massive particles of any spin, we revisit the van Dam-Veltman-Zakharov (vDVZ) discontinuity o…
The KLT relations in unimodular gravity
Daniel J Burger, George F. R. Ellis, Jeff Murugan +1
With this article, we initiate a systematic study of some of the symmetry properties of unimodular gravity, building on much of the known structure of general relativity, and utili…