Three loop QCD corrections to heavy quark form factors. (April 2020)

• Record Type: Journal Article
• Authors: Ablinger, J.; Blümlein, J.; Marquard, P.; Rana, N.; Schneider, C.
• Is Part Of: Journal of physics. Volume 1525(2020)
• Publication Date: 2020-04
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1525/1/012018
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Higher order calculations in perturbative Quantum Field Theories often produce coupled linear systems of differential equations which factorize to first order. Here we present an algorithm to solve such systems in terms of iterated integrals over an alphabet the structure of which is implied by the coefficient matrix of the given system. We apply this method to calculate the master integrals in the color–planar and complete light quark contributions to the three-loop massive form factors.