Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC

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 reported. Two different final states originating from the decays of the Z boson pair, 4l and 2l2v, are included...

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Detalles Bibliográficos
Autor principal: Zhang, Shuzhou
Lenguaje:eng
Publicado: 2021
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2766142
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author Zhang, Shuzhou
author_facet Zhang, Shuzhou
author_sort Zhang, Shuzhou
collection CERN
description 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 reported. Two different final states originating from the decays of the Z boson pair, 4l and 2l2v, are included in the measurements. A significant data excess from the background‐only hypothesis is observed, which corresponds to a statistical significance of 5.5σ. The observed excess is compatible with the electroweak production of two jets in association with a Z‐boson pair in vector-boson scattering processes. The cross‐sections for inclusive production of ZZ plus two jets, as well as the observed signal strength of the EW production, are presented.
id cern-2766142
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27661422021-05-07T20:09:02Zhttp://cds.cern.ch/record/2766142engZhang, ShuzhouObservation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHCParticle Physics - ExperimentThe 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 reported. Two different final states originating from the decays of the Z boson pair, 4l and 2l2v, are included in the measurements. A significant data excess from the background‐only hypothesis is observed, which corresponds to a statistical significance of 5.5σ. The observed excess is compatible with the electroweak production of two jets in association with a Z‐boson pair in vector-boson scattering processes. The cross‐sections for inclusive production of ZZ plus two jets, as well as the observed signal strength of the EW production, are presented.ATL-PHYS-SLIDE-2021-148oai:cds.cern.ch:27661422021-05-07
spellingShingle Particle Physics - Experiment
Zhang, Shuzhou
Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title_full Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title_fullStr Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title_full_unstemmed Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title_short Observation of electroweak production of two jets and a Z-boson pair with the ATLAS detector at the LHC
title_sort observation of electroweak production of two jets and a z-boson pair with the atlas detector at the lhc
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2766142
work_keys_str_mv AT zhangshuzhou observationofelectroweakproductionoftwojetsandazbosonpairwiththeatlasdetectoratthelhc

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