Mixing with descendant fields in perturbed minimal CFT models

Understand

We extend the analysis of the RG trajectory connecting successive minimal CFT models ${\cal M}_p$ and ${\cal M}_{p-1}$ for $p\gg 1$, performed by A.

• Zamolodchikov, to the fields $\varphi_{n,n\pm 3}$.
• This required a close investigation of mixing with the descendant fields at the level 2.
• In particular we identify those specific linear combinations of UV fields which flow to the IR fields $\varphi_{n+3,n}$ and $\varphi_{n-3,n}$.