A systematic and efficient method to compute multi-loop master integrals

Xiao Liu, Yan-Qing Ma, Chen-Yu Wang
2018 Physics Letters B  
We propose a novel method to compute multi-loop master integrals by constructing and numerically solving a system of ordinary differential equations, with almost trivial boundary conditions. Thus it can be systematically applied to problems with arbitrary kinematic configurations. Numerical tests show that our method can not only achieve results with high precision, but also be much faster than the only existing systematic method sector decomposition. As a by product, we find a new strategy to
more » ... a new strategy to compute scalar one-loop integrals without reducing them to master integrals.
doi:10.1016/j.physletb.2018.02.026 fatcat:5fjnmkgylzed3j6ka5umv6tegi