Speaker
Enrico Di Salvo
(VUB)
Description
Matter-coupled Chern–Simons theories in 2+1 dimensions give rise to anyonic statistics and unusual scattering phenomena. Recent large-N studies have suggested that their S-matrices exhibit modified crossing symmetry and additional forward-scattering contributions. We present the first direct perturbative study of these effects in non-Abelian Chern–Simons theories coupled to fundamental fermions, focusing on the large-k, fixed-N regime. While forward-scattering modifications are expected to emerge at one loop, unitarity arguments already reveal signatures of these effects at tree level. We establish a framework for systematic one-loop calculations that will provide a direct perturbative test of the proposed modifications.