Conformal anomaly for amplitudes in N=6 superconformal Chern-Simons theory
2012 (English)In: Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, Vol. 45, no 47, 475402- p.Article in journal (Refereed) Published
Scattering amplitudes in three-dimensional N = 6 Chern-Simons theory are shown to be non-invariant with respect to the free representation of the osp(6 vertical bar 4) symmetry generators. At tree and one-loop level these 'anomalous' terms occur only for non-generic, singular configurations of the external momenta and can be used to determine the form of the amplitudes. In particular we show that the symmetries predict that the one-loop six-point amplitude is non-vanishing and confirm this by means of an explicit calculation using generalized unitarity methods. We comment on the implications of this finding for any putative Wilson loop/amplitude duality in N = 6 Chern-Simons theory.
Place, publisher, year, edition, pages
2012. Vol. 45, no 47, 475402- p.
IdentifiersURN: urn:nbn:se:su:diva-83814DOI: 10.1088/1751-8113/45/47/475402ISI: 000311036900017OAI: oai:DiVA.org:su-83814DiVA: diva2:577117