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

Ferreira de Lima, Danilo Enoque; Mattelaer, Olivier; Spannowsky, Michael

Abstract

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.

Citation

Ferreira de Lima, D. E., Mattelaer, O., & Spannowsky, M. (2018). Searching for processes with invisible particles using a matrix element-based method. Physics Letters B, 787, 100-104. https://doi.org/10.1016/j.physletb.2018.10.044

• Journal Article Type: Article
• Acceptance Date: Oct 22, 2018
• Online Publication Date: Oct 25, 2018
• Publication Date: Oct 25, 2018
• Deposit Date: Nov 8, 2018
• Publicly Available Date: Nov 8, 2018
• Journal: Physics Letters B
• Print ISSN: 0370-2693
• Electronic ISSN: 1873-2445
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 787
• Pages: 100-104
• DOI: https://doi.org/10.1016/j.physletb.2018.10.044
• Public URL: https://durham-repository.worktribe.com/output/1343599