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Complete construction of magical, symmetric and homogeneous N=2 supergravities as double copies of gauge theories
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 117, no 1, 011603Article in journal (Refereed) Published
Abstract [en]

We show that scattering amplitudes in magical, symmetric or homogeneous N=2 Maxwell-Einstein supergravities can be obtained as double copies of two gauge theories, using the framework of color/kinematics duality. The left-hand-copy is N=2 super-Yang-Mills theory coupled to a hypermultiplet, whereas the right-hand-copy is a non-supersymmetric theory that can be identified as the dimensional reduction of a D-dimensional Yang-Mills theory coupled to P fermions. For generic D and P, the double copy gives homogeneous supergravities. For P=1 and D=7,8,10,14, it gives the magical supergravities. We compute explicit amplitudes, discuss their soft limit and study the UV-behavior at one loop.

Place, publisher, year, edition, pages
2016. Vol. 117, no 1, 011603
National Category
Subatomic Physics
Research subject
Theoretical Physics
Identifiers
URN: urn:nbn:se:uu:diva-287816DOI: 10.1103/PhysRevLett.117.011603ISI: 000378881300003PubMedID: 27419560OAI: oai:DiVA.org:uu-287816DiVA: diva2:923491
Funder
Swedish Research Council, 621-2014-5722Knut and Alice Wallenberg Foundation, KAW 2013.0235German Research Foundation (DFG), SFB 647
Available from: 2016-04-26 Created: 2016-04-26 Last updated: 2016-07-29Bibliographically approved

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