Abstract
Conformal blocks are the building blocks for correlation functions in conformal field theories. The four-point function is the most well-studied case. We consider conformal blocks for n-point correlation functions. For conformal field theories in dimensions d = 1 and d = 2, we use the shadow formalism to compute n-point conformal blocks, for arbitrary n, in a particular channel which we refer to as the comb channel. The result is expressed in terms of a multivariable hypergeometric function, for which we give series, differential, and integral representations. In general dimension d we derive the 5-point conformal block, for external and exchanged scalar operators.
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Rosenhaus, V. Multipoint conformal blocks in the comb channel. J. High Energ. Phys. 2019, 142 (2019). https://doi.org/10.1007/JHEP02(2019)142
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DOI: https://doi.org/10.1007/JHEP02(2019)142