Heavy Quark Vacuum Polarisation to Three Loops
Abstract
The real and imaginary part of the vacuum polarisation function (q2) induced by a massive quark is calculated in perturbative QCD up to order αs2. The method is described and the results are presented. This extends the calculation by K\"all\'en and Sabry from two to three loops.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.