Topological M theory from pure spinor formalism

by P.A. Grassi (CERN)

Tuesday 14 Dec 2004, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

We construct multiloop superparticle amplitudes in 11d using the pure spinor formalism. For that purpose, we review the pure spinor formalism for superparticles, superstrings, and for supermembranes. In particular, we show that the extensions at higher orders of the tree-level and one-loop results for the superparticle. We then argue that this prescription points to some evidence for the existence of a topological M theory based on a relation between the ghost number of the full-fledged supersymmetric critical models and the dimension of the spacetime for topological models.