Can I read On-Shell Perspectives on the Massless Limit of Massive Supergravity on EtoBox?

On-Shell Perspectives on the Massless Limit of Massive Supergravity by Burger, Daniel J; Moynihan, Nathan; Murugan, Jeff is a scholarly article available to read on EtoBox.

What is On-Shell Perspectives on the Massless Limit of Massive Supergravity about?

Massive gravity exhibits a famous discontinuity in its 2-point linearized amplitude for t-channel scattering of gravitational sources, in the $m \to 0$ limit. In essence, the source of this vDVZ discontinuity is in the failure of the zero-helicity mode to decouple in this limit. In [1], we showed how this result could be understood in the context of modern on-shell methods and, in particular, the BCFW construction. In this article, we provide a similar on-shell perspective to the equally interesting but lesser known discontinuity first discovered by Deser, Kay and Stelle in massive supergravity.

Author

Burger, Daniel J; Moynihan, Nathan; Murugan, Jeff

Published

2020

Language

EN