Special functions, their periods in Higher Loop Diagrams and their Numerical Evaluation
by
Mark Round(RISC JKU Linz and DESY)
→
Europe/Berlin
Seminar room 2, building 2A (DESY Hamburg)
Seminar room 2, building 2A
DESY Hamburg
Description
A review of the basic special functions occurring in perturbative field theory diagrams is given. New results concerning generalised and cyclotomic polylogarithms originating from Feynman diagrams that contribute to the massive Wilson coefficients in DIS at 3-loops are also outlined. Some emphasis on numerical evaluation is given and how numerical issues relate to special functions and number theoretic considerations.
