Jul 15 – 19, 2019
US/Eastern timezone

Loop Tree Duality for multi-loop numerical integration

Jul 18, 2019, 5:45 PM
2200 A Chair : Ulrich Schubert

2200 A Chair : Ulrich Schubert


Dr Valentin Hirschi (ETHZ)


Loop Tree Duality (LTD) offers a promising avenue to numerically integrate multi-loop integrals directly in momentum space by relating them to on-shell trees. I will first present our novel formulation of this duality, applicable systematically and for generic multi-loop integrals. I will then showcase our first numerical results for up to four-loop finite scalar topologies, and conclude by discussing our ongoing work regarding applications to physical loop amplitudes that require an adequate contour deformation and local subtraction of its IR divergences

Primary author

Dr Valentin Hirschi (ETHZ)

Presentation materials