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arXiv · 2211.14156

Universal Decomposition of Phase-Space Integrands

David A. Kosower·Ben Page
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Abstract

One-loop integrands can be written in terms of a simple, process-independent basis. We show that a similar basis exists for integrands of phase-space integrals for the real-emission contribution at next-to-leading order. Our demonstration deploys techniques from computational algebraic geometry to partial-fraction integrands in a systematic way. This takes the first step towards a decomposition of phase-space integrals in terms of a basis of master integrals.

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David A. Kosower, Ben Page. 2022-11-25. Universal Decomposition of Phase-Space Integrands. https://doi.org/10.1103/physrevd.107.096006

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