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Complete Construction of Magical, Symmetric, and Homogeneous N=2 Supergravities as Double Copies of Gauge Theories
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 117, no 1, 011603Article in journal (Refereed) Published
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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 nonsupersymmetric 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 limits, and study the UV behavior at one loop.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 117, no 1, 011603
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Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-189927DOI: 10.1103/PhysRevLett.117.011603ISI: 000378881300003PubMedID: 27419560Scopus ID: 2-s2.0-84977654373OAI: oai:DiVA.org:kth-189927DiVA: diva2:950328
Available from: 2016-07-29 Created: 2016-07-25 Last updated: 2016-11-30Bibliographically approved

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