Yang Zhang, USTC

Theory Seminar

Title:

Multi-loop scattering amplitude computation in QCD via Algebraic geometry

Abstract:

We apply modern computational algebraic geometry techniques, for the calculation of multi-loop scattering amplitudes of the LHC. Algebraic geometry methods can identify the so-called canonical Feynamn integral basis, and pick up relevant integral linear relations for complicated loop computations. We demonstrate the power of our method by the fully analytic two-loop non-planar five-gluon pure-Yang-Mills amplitude computation