PoS - Proceedings of Science
Volume 303 - Loops and Legs in Quantum Field Theory (LL2018) - Parallel 1
Massive three loop form factor in the planar limit
N. Rana,* J. Ablinger, J. Bluemlein, P. Marquard, C. Schneider
*corresponding author
Full text: pdf
Published on: October 02, 2018
Abstract
We present the color planar and complete light quark QCD contributions to the three loop heavy
quark form factors in the case of vector, axial-vector, scalar and pseudo-scalar currents. We eval-
uate the master integrals applying a new method based on differential equations for general bases,
which is applicable for any first order factorizing systems. The analytic results are expressed in
terms of harmonic polylogarithms and real-valued cyclotomic harmonic polylogarithms.
DOI: https://doi.org/10.22323/1.303.0009
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