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Two Invertible Networks for the Matrix Element Method

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arxiv 2210.00019 v5 pith:XRW4C6QE submitted 2022-09-30 hep-ph

classification hep-ph
keywords approachelementmatrixmethodnetworksassociatedassumptionscombination
verification ladder T0 review T1 audit T2 compute T3 formal
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The matrix element method is widely considered the ultimate LHC inference tool for small event numbers. We show how a combination of two conditional generative neural networks encodes the QCD radiation and detector effects without any simplifying assumptions, while keeping the computation of likelihoods for individual events numerically efficient. We illustrate our approach for the CP-violating phase of the top Yukawa coupling in associated Higgs and single-top production. Currently, the limiting factor for the precision of our approach is jet combinatorics.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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