Search for electroweak diboson production in association with a high-mass dijet system in semileptonic final states in pp collisions at s =13 TeV with the ATLAS detector

ATLAS Collaboration

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Abstract

This paper reports on a search for electroweak diboson (WW/WZ/ZZ) production in association with a high-mass dijet system, using data from proton-proton collisions at a center-of-mass energy of s=13 TeV. The data, corresponding to an integrated luminosity of 35.5 fb-1, were recorded with the ATLAS detector in 2015 and 2016 at the Large Hadron Collider. The search is performed in final states in which one boson decays leptonically, and the other boson decays hadronically. The hadronically decaying W/Z boson is reconstructed as either two small-radius jets or one large-radius jet using jet substructure techniques. The electroweak production of WW/WZ/ZZ in association with two jets is measured with an observed (expected) significance of 2.7 (2.5) standard deviations, and the fiducial cross section is measured to be 45.1±8.6(stat.)-14.6+15.9(syst.) fb.

Original languageEnglish (US)
Article number032007
JournalPhysical Review D
Volume100
Issue number3
DOIs
StatePublished - Aug 22 2019
Externally publishedYes

Bibliographical note

Funding Information:
We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; Yerevan Physics Institute (YerPhI), Armenia; ARC, Australia; BMWFW and FWF, Austria; Azerbaijan National Academy of Sciences (ANAS), Azerbaijan; State Science and Technology Committee (SSTC), Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and Committee for Collaboration of the Czech Republic with CERN (VSC CR), Czech Republic; DNRF and Danish Natural Science Research Council (DNSRC), Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; Shota Rustaveli National Science Foundation of Georgia (SRNSFG), Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; Research Council of Norway (RCN), Norway; MNiSW and NCN, Poland; FCT, Portugal; Ministry of National Education, Institute of Atomic Physics (MNE/IFA), Romania; Ministry of Education and Science of the Russian Federation (MES) of Russia and National Research Centre Kurchatov Institute, Russian Federation; JINR; Ministry of Education, Science and Technological Development (MESTD), Serbia; Ministry of Education, Science, Research and Sport (MSSR), Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; Swedish Research Council (SRC) and Wallenberg Foundation, Sweden; Secretariat for Education and Research (SERI), SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, CRC and Compute Canada, Canada; COST, ERC, ERDF, Horizon 2020, and Marie Skłodowska-Curie Actions, European Union; Investissements d’ Avenir Labex and Idex, ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; CERCA Programme Generalitat de Catalunya, Spain; The Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. .

Publisher Copyright:
© 2019 CERN.

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