Tensor $O(N)$ model near six dimensions: fixed points and conformal windows from four loops

Understand

In search of non-trivial field theories in high dimensions, we study further the tensor representation of the $O(N)$-symmetric $\phi^4$ field theory introduced by Herbut and Janssen (Phys.

• Rev.
• D.
• 93, 085005 (2016)), by using four-loop perturbation theory in two cubic interaction coupling constants near six dimensions.