Speaker
Nikolay Volchanskiy
(BLTPh JINR & Southern Federal U.)
Description
We calculate two-loop massless correlator $G(n_1,n_2,n_3,n_4,n_5;x,y;D)$ of two composite vertexes with Bjorken fractions $x$ and $y$, arbitrary indices $n_i$, and arbitrary space-time dimension, $D$. A closed-form expression for this two-loop kite Feynman diagram with composite vertexes is given in terms of a twofold hypergeometric series. In some special cases it reduces to a sum of univariate hypergeometric functions $_3F_2$.
Primary authors
Sergey Mikhailov
(BLTP JINR)
Nikolay Volchanskiy
(BLTPh JINR & Southern Federal U.)
