Volume 376 -
Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2019) -
Workshop on Connecting Insights in Fundamental Physics: Standard Model and Beyond
Measurement of inclusive cross section and observation of electroweak production of two jets inassociation with a $Z$-boson pair in $pp$ collisions at√s=13TeV with the ATLAS detector
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Published on:
August 18, 2020
Abstract
The observation of electroweak production of two jets in association with a Z-boson pair using 139 fb−1 of pp collision data at √s = 13 TeV collected by the ATLAS detector at the LHC is presented. Two different final states originating from the decays of the Z boson pair, one containing four charged leptons, and the other two charged leptons and two neutrinos, are considered. A significant deviation from the background-only hypothesis is observed, which corresponds to a statistical significance of 5.5 σ. The observed excess is compatible with the electroweak production of two jets in association with a Z-boson pair. In addition, cross-sections for inclusive production of ZZ plus two jets, as well as the observed signal strength of the EW production, are reported.
DOI: https://doi.org/10.22323/1.376.0013
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.