6533b858fe1ef96bd12b5a19

RESEARCH PRODUCT

The H-graph with equal masses in terms of multiple polylogarithms

Philipp Alexander KreerStefan Weinzierl

subject

PhysicsHigh Energy Physics - TheoryNuclear and High Energy PhysicsPure mathematics010308 nuclear & particles physicsGravitational wavePhysicsQC1-999Process (computing)FOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)01 natural sciencesGeneral Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics - Theory (hep-th)Initial phase0103 physical sciencesArbitrary-precision arithmeticGraph (abstract data type)Order (group theory)Binary systemPerturbation theory (quantum mechanics)010306 general physics

description

The initial phase of the inspiral process of a binary system producing gravitational waves can be described by perturbation theory. At the third post-Minkowskian order a two-loop double box graph, known as H-graph contributes. We consider the case where the two objects making up the binary system have equal masses. We express all master integrals related to the equal-mass H-graph up to weight four in terms of multiple polylogarithms. We provide a numerical program which evaluates all master integrals up to weight four in the physical regions with arbitrary precision.

https://dx.doi.org/10.48550/arxiv.2104.07488