A formula for the block expansion in free CFTs and applications to $\mathcal{N}=4$ SYM at strong coupling

F. Aprile, J. M. Drummond, P. J. Heslop +1

An explicit analytic formula is presented that computes the conformal (super-)block decomposition of any free scalar or half-BPS diagram in 1d, 2d or 4d CFTs, with various supersym…