Search for ZZ and ZH production in the bbbb final state using proton-proton collisions at √s = 13 TeV
Open access
Datum
2024-07Typ
- Journal Article
ETH Bibliographie
yes
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Abstract
A search for ZZ and ZH production in the bb¯bb¯ final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133fb-1 collected at a center-of-mass energy of 13TeV with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based on control samples in data. A multiclass multivariate classifier customized for the bb¯bb¯ final state is developed to derive the background model and extract the signal. The data are found to be consistent, within uncertainties, with the SM predictions. The observed (expected) upper limits at 95% confidence level are found to be 3.8 (3.8) and 5.0 (2.9) times the SM prediction for the ZZ and ZH production cross sections, respectively. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000685502Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
The European Physical Journal CBand
Seiten / Artikelnummer
Verlag
SpringerFörderung
758316 - Majorana neutrino discovery strategy with CMS (EC)
ETH Bibliographie
yes
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