Prescriptive Master Integrals of Maximal Weight at Two Loops
arXiv:2610.10672
Abstract
We describe the construction of a spanning set of individually pure, planar master integrals involving massless particles in four dimensions which include all maximal-weight contributions at two loops. In this basis, every independent region associated with infrared divergence is individually matched by specific masters, with all other masters being manifestly finite in four dimensions.
68 pages, 521 figures; ancillary files provide analytic expressions for all master integrals and their defining contour prescriptions