Observation of electroweak production of two jets and a Z-boson pair

ATLAS Collaboration; J. R. Bensinger; C. Blocker; G. Sciolla

doi:10.1038/s41567-022-01757-y

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Observation of electroweak production of two jets and a Z-boson pair

Journal article

Peer reviewed

Observation of electroweak production of two jets and a Z-boson pair

ATLAS Collaboration, J. R. Bensinger, C. Blocker and G. Sciolla

Nature physics, Vol.19(2)

02/01/2023

DOI: https://doi.org/10.1038/s41567-022-01757-y

Abstract

Physics, Multidisciplinary

Science & Technology

Physical Sciences

Physics

Electroweak symmetry breaking explains the origin of the masses of elementary particles through their interactions with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering of massive vector bosons with spin one allows the nature of electroweak symmetry breaking to be probed. Among all processes related to vector-boson scattering, the electroweak production of two jets and a Z-boson pair is a rare and important one. Here we report the observation of this process from proton-proton collision data corresponding to an integrated luminosity of 139 fb(-1) recorded at a centre-of-mass energy of 13 TeV with the ATLAS detector at the Large Hadron Collider. We consider two different final states originating from the decays of the Z-boson pair - one containing four charged leptons and the other containing two charged leptons and two neutrinos. The hypothesis of no electroweak production is rejected with a statistical significance of 5.7 sigma, and the measured cross-section for electroweak production is consistent with the standard model prediction. In addition, we report cross-sections for inclusive production of a Z-boson pair and two jets for the two final states.

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Title: Observation of electroweak production of two jets and a Z-boson pair
Creators: ATLAS Collaboration (Author)
J. R. Bensinger (Author) - Brandeis University
C. Blocker (Author) - Brandeis University
G. Sciolla (Author) - Brandeis University
Publication Details: Nature physics, Vol.19(2)
Publisher: Springer Nature
Number of pages: 36
Grant note: MSSR, Slovakia ANAS, Azerbaijan; Azerbaijan National Academy of Sciences (ANAS) FWF, Austria; Austrian Science Fund (FWF) NAWA, Poland; Polish National Agency for Academic Exchange (NAWA) Investissements d'Avenir Idex, France; Agence Nationale de la Recherche (ANR) GSRI, Greece Benoziyo Center, Israel CAS, China; Chinese Academy of Sciences Wallenberg Foundation, Sweden NRC, Canada IN2P3-CNRS, France; Centre National de la Recherche Scientifique (CNRS) Compute Canada, Canada MOST, China; Ministry of Science and Technology, China RCN, Norway ERC, European Union; European Union (EU); European Research Council (ERC) RGC, China JINR ANPCyT, Argentina; ANPCyT ANR, France; Agence Nationale de la Recherche (ANR) BMWFW, Austria TAEK, Turkey; Ministry of Energy & Natural Resources - Turkey SNSF, Switzerland; Swiss National Science Foundation (SNSF) MESTD, Serbia; Ministry of Education, Science & Technological Development, Serbia CNPq, Brazil; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) SRC, Sweden ARRS, Slovenia; Slovenian Research Agency - Slovenia MEYS CR, Czech Republic La Caixa Banking Foundation, Spain MEiN, Poland ERDF, European Union; European Union (EU); Marie Curie Actions NSERC, Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) NRC KI, Russian Federation Herakleitos programme - EU-ESF, Greece MIZS, Slovenia Canton of Bern, Switzerland Thales - EU-ESF, Greece MPG, Germany; Max Planck Society BSF-NSF, Israel GIF, Israel; German-Israeli Foundation for Scientific Research and Development SSTC, Belarus NCN, Poland MEXT, Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) DSI/NRF, South Africa NSFC, China; National Natural Science Foundation of China (NSFC) Investissements d'Avenir Labex, France; Agence Nationale de la Recherche (ANR) CERN JSPS, Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science CEA-DRF/IRFU, France Hong Kong SAR, China INFN, Italy; Istituto Nazionale di Fisica Nucleare (INFN) COST, European Union BMBF, Germany; Federal Ministry of Education & Research (BMBF) BCKDF, Canada DNRF, Denmark; National Research Foundation of Korea DFG, Germany; German Research Foundation (DFG) FCT, Portugal; Fundacao para a Ciencia e a Tecnologia (FCT) NSF, United States of America; National Science Foundation (NSF) Norwegian Financial Mechanism 2014-2021, Norway Goran Gustafssons Stiftelse, Sweden FAPESP, Brazil; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) MNE/IFA, Romania MES of Russia DNSRC, Denmark; Danish Natural Science Research Council Marie Sklodowska-Curie Actions, European Union; European Union (EU); Marie Curie Actions Greek NSRF, Greece Canton of Geneva, Switzerland STFC, United Kingdom; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) CFI, Canada; Canada Foundation for Innovation ISF, Israel; Israel Science Foundation CERCA Programme Generalitat de Catalunya, Spain AvH Foundation, Germany; Alexander von Humboldt Foundation NWO, Netherlands; Netherlands Organization for Scientific Research (NWO); Netherlands Government MICINN, Spain; Spanish Government SRNSFG, Georgia ARC, Australia; Australian Research Council CRC, Canada ANID, Chile HGF, Germany YerPhI, Armenia MOST, Taiwan; Ministry of Science and Technology, Taiwan CNRST, Morocco Minciencias, Colombia SERI, Switzerland PROMETEO Programme Generalitat Valenciana, Spain CANARIE, Canada Royal Society, United Kingdom; Royal Society Leverhulme Trust, United Kingdom; Leverhulme Trust Aristeia programme - EU-ESF, Greece Horizon 2020, European Union GenT Programme Generalitat Valenciana, Spain DOE, United States of America; United States Department of Energy (DOE)
Identifiers: 9924286638301921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

Observation of electroweak production of two jets and a Z-boson pair

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