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Searching for processes with invisible particles using a matrix element-based method.

Ferreira de Lima, Danilo Enoque and Mattelaer, Olivier and Spannowsky, Michael (2018) 'Searching for processes with invisible particles using a matrix element-based method.', Physics letters B., 787 . pp. 100-104.


We propose a fully flexible method to discriminate between signal and background using a matrix element-based method in the presence of multiple invisible particles. The proposed method performs a mapping of the measured final state onto an observable which improves the separation between signal and background using their matrix elements. To show how performant this generic method is in separating signal from background, we apply it to the prominent partly invisible decay of a Higgs boson into a muon–antimuon pair and two muon-neutrinos via two W bosons.

Item Type:Article
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Publisher statement:© 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (
Date accepted:22 October 2018
Date deposited:08 November 2018
Date of first online publication:25 October 2018
Date first made open access:08 November 2018

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