TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.3.094
TI  - Two invertible networks for the matrix element method
PY  - 2023/09/14
UR  - https://scipost.org/SciPostPhys.15.3.094
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 3
SP  - 094
A1  - Butter, Anja
AU  - Heimel, Theo
AU  - Martini, Till
AU  - Peitzsch, Sascha
AU  - Plehn, Tilman
AB  - 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.
ER  -

@Article{10.21468/SciPostPhys.15.3.094,
	title={{Two invertible networks for the matrix element method}},
	author={Anja Butter and Theo Heimel and Till Martini and Sascha Peitzsch and Tilman Plehn},
	journal={SciPost Phys.},
	volume={15},
	pages={094},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.3.094},
	url={https://scipost.org/10.21468/SciPostPhys.15.3.094},
}