OKC/Nordita High-Energy Physics Theory seminar

N=2 supergravities as double copies of gauge theories

by Marco Chiodaroli (Uppsala)

Europe/Stockholm
132:028 (Nordita East Building)

132:028

Nordita East Building

Roslagstullsbacken 23
Description
This talk reports on recent progress in amplitude computations for broad classes of N=2 Maxwell-Einstein and Yang-Mills-Einstein supergravities, using the framework provided by color/kinematics duality and the double-copy construction. After a review of the main theoretical tools, we discuss the extension of the double-copy construction to a particular infinite family of N=2 Maxwell-Einstein theories in four and five dimensions, the generic Jordan family of supergravities. We show that the global symmetries of these theories can be easily gauged, giving the amplitudes of the corresponding Yang-Mills-Einstein supergravities. We also discuss how the construction can be modified to describe spontaneous symmetry breaking. Finally, we present an extension of the construction that captures an even larger class of N=2 supergravities with homogeneous target spaces.