Resummation at finite conformal spin
Abstract
We generalize the computation of anomalous dimension and correction to OPE coefficients at finite conformal spin considered recently in \cite{arXiv:1806.10919, arXiv:1808.00612} to arbitrary space-time dimensions. By using the inversion formula of Caron-Huot and the integral (Mellin) representation of conformal blocks, we show that the contribution from individual exchanges to anomalous dimensions and corrections to the OPE coefficients for "double-twist" operators in channel can be written at finite conformal spin in terms of generalized Wilson polynomials. This approach is democratic {\it wrt} space-time dimensions, thus generalizing the earlier findings to cases where closed form expressions of the conformal blocks are not available.
Cite
@article{arxiv.1811.00213,
title = {Resummation at finite conformal spin},
author = {Carlos Cardona and Sunny Guha and Surya Kiran Kanumilli and Kallol Sen},
journal= {arXiv preprint arXiv:1811.00213},
year = {2019}
}
Comments
Typos corrected, references added. JHEP version