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Resummation at finite conformal spin

Authors :
Cardona, Carlos
Guha, Sunny
Kanumilli, Surya Kiran
Sen, Kallol
Source :
J. High Energ. Phys. (2019) 2019: 77
Publication Year :
2018

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 $[\mathcal{O}_1\mathcal{O}_2]_{\Delta,J}$ in $s-$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.<br />Comment: Typos corrected, references added. JHEP version

Subjects

Subjects :
High Energy Physics - Theory

Details

Database :
arXiv
Journal :
J. High Energ. Phys. (2019) 2019: 77
Publication Type :
Report
Accession number :
edsarx.1811.00213
Document Type :
Working Paper
Full Text :
https://doi.org/10.1007/JHEP01(2019)077