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Maximal supersymmetry, light-front dynamics and exceptional symmetries

Lars Brink (Institutionen för fundamental fysik, Elementarpartikelfysik)
Annals of the University of Craiova, Physics (1223-6039). Vol. 21 (2011), 1, p. 145-153.
[Artikel, refereegranskad vetenskaplig]

In this talk I describe some recent work by Kim, Ramond and myself where we formulate N = 8 Supergravity in the light-front form. In this form the E 7(7) symmetry, which in the covariant formulation is just a duality symmetry and a non-linear σ-model symmetry in the bosonic fields at the level of the equations of motion, is shown to be a genuine symmetry much like the SuperPoincaré symmetry and it is found that they are spanned on the same multiplet. Hence in this formulation the E 7(7) symmetry transforms all the physical degrees of freedom. Finally I argue that this formalism is well suited to discuss possible counterterms in order to examine the divergence properties of the perturbation expansion, a much discussed issue these days.

Denna post skapades 2012-09-25.
CPL Pubid: 163886


Institutioner (Chalmers)

Institutionen för fundamental fysik, Elementarpartikelfysik (2005-2013)



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