CMS-PAS-EXO-23-003

CMS-PAS-EXO-23-003
Search for soft unclustered energy patterns in association with a Z boson in proton-proton collisions at 13 TeV
CMS Collaboration
27 March 2025

Abstract: A search for soft unclustered energy patterns (SUEPs) produced in association with a Z boson is presented. The analysis is based on proton-proton collision data corresponding to an integrated luminosity of 138 fb$ ^{-1} $, collected between 2016 and 2018 with the CMS detector at $ \sqrt{s}= $ 13 TeV. Final states with two light leptons compatible with a Z boson decay and a high multiplicity of low-momentum tracks are explored for the first time. The results show no significant excess over the standard model expectation and are used to set upper limits on the cross section of the associated SUEP+Z production process. Model-agnostic results are provided for reinterpretation with other signal models.
Links: CDS record (PDF) ; Physics Briefing ; CADI line (restricted) ; These preliminary results are superseded in this paper, Published in PLB. The superseded preliminary plots can be found here.

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