期刊
PHYSICS LETTERS B
卷 753, 期 -, 页码 552-572出版社
ELSEVIER
DOI: 10.1016/j.physletb.2015.12.048
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资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWFW, Austria
- FWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, Canada
- CFI, Canada
- CERN
- CONICYT, Chile
- CAS, China
- MOST, China
- NSFC, China
- COLCIENCIAS, Colombia
- MSMT CR, Czech Republic
- MPO CR, Czech Republic
- VSC CR, Czech Republic
- DNRF, Denmark
- DNSRC, Denmark
- Lundbeck Foundation, Denmark
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- HGF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, Hong Kong SAR, China
- ISF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia
- NRC KI, Russian Federation
- JINR
- MESTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SERI, Switzerland
- SNSF, Switzerland
- Canton of Bern, Switzerland
- Canton of Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, United States of America
- NSF, United States of America
- BCKDF, Canada
- Canada Council, Canada
- CANARIE, Canada
- CRC, Canada
- Compute Canada, Canada
- FQRNT, Canada
- Ontario Innovation Trust, Canada
- EPLANET
- ERC
- FP7
- Horizon
- Marie Sklodowska-Curie Actions, European Union
- Investissements d'Avenir Labex and Idex , France
- ANR, France
- Region Auvergne, France
- Fondation Partager le Savoir, France
- DFG, Germany
- AvH Foundation, Germany
- Herakleitos programme
- Thales programme
- Aristeia programme
- EU-ESF
- Greek NSRF
- BSF, Israel
- GIF, Israel
- Minerva, Israel
- BRF, Norway
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- STFC [ST/I000119/1, ST/N000420/1, ST/M001504/1, ST/J00474X/1, ST/N000463/1, ST/M006980/1, ST/M001407/1, ST/M002039/1, ST/K000039/1, ST/K000705/1, ST/M004937/1, ST/J005525/1, ST/J005487/1, ST/L006464/1, ST/H001093/1, ST/L001195/1, ST/L003414/1, ST/L001179/1, ST/I00372X/1, PP/E002846/1, PP/E000355/1, ST/H00100X/1, ST/H00100X/2, ST/L001144/1, ST/K00140X/1, ST/K001302/1, ST/K003895/1, ST/M002306/1, ST/L00352X/1, ST/M000761/1, ST/J004979/1, ST/L006111/1, ST/P002439/1, ST/K001361/1, ST/N000277/1, ST/L003112/1, ST/I000178/1, ST/M001733/1, ST/K001329/1, ST/M001431/1, ST/I003533/1, ST/H001093/2, ST/G50228X/1, ST/K001248/1, ST/K00073X/1, ST/K00137X/1, ST/I006056/1, PP/E000347/1, PP/D002915/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/M006980/1 ATLAS Upgrades, ST/M002039/1, ST/H00100X/2, ST/L001144/1, PP/E002846/1, ST/M001733/1, ST/J00474X/1 ATLAS Upgrades, 1334588, ST/L006111/1, ST/K001310/1, PP/E000444/1, 1201187, 1082012, ST/L006464/1, GRIDPP, ST/K00073X/1, ST/J004979/1, ST/M004937/1, ST/M002306/1, ST/I003533/1, ST/L001179/1 ATLAS Upgrade, ST/K001310/1 ATLAS Upgrades, ST/K001361/1 ATLAS Upgrades, ST/I006056/1 ATLAS Upgrade, ST/I006056/1 ATLAS Upgrades, PP/E000355/1, ST/J005487/1, ST/H00100X/1, ST/M004937/1 GRIDPP, ST/K001361/1 LHCb, ST/K001310/1 LHCb, ST/K001426/1 ATLAS, ST/K00140X/1, 1575161, ST/K001329/1, ATLAS, ST/K003895/1, ST/K001418/1, ST/I006056/1, ST/M001504/1, ST/M001474/1, ST/L001179/1 ATLAS Upgrades, ST/M007103/1 ATLAS Upgrades, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/I00372X/1 GRIDPP, ST/M001431/1, ST/I003533/1 GRIDPP, ST/L001209/1 ATLAS Upgrades, ST/K00137X/1, ST/L001179/1, ST/N000463/1, ST/H001093/2, ST/K000039/1, ST/L003414/1, ST/N000277/1, 1366364, ST/K001310/1 LHCb Upgrades, ST/N000420/1, ST/K000705/1, ST/P002439/1, ST/J005525/1, PP/D002915/1, 1521422, ST/M002071/1 ATLAS Upgrades, ST/M006980/1, ST/I000178/1, ST/I00372X/1, ST/J00474X/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1, 1366825, ST/K001361/1, ST/K001302/1, ST/K001264/1 ATLAS, ST/I000119/1, ST/M000761/1, ST/K001248/1, ST/K001361/1 ATLAS, ST/G50228X/1, ST/L001195/1, ST/M001407/1, ST/M002306/1 ATLAS Upgrades] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1119200, 1506173] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1410972] Funding Source: National Science Foundation
- Fundação para a Ciência e a Tecnologia [CERN/FIS-NUC/0005/2015] Funding Source: FCT
- ICREA Funding Source: Custom
The four-lepton (4l, l = e, mu) production cross section is measured in the mass range from 80 to 1000GeV using 20.3 fb(-1)of data in pp collisions at root s = 8 TeV collected with the ATLAS detector at the LHC. The 4l events are produced in the decays of resonant Zand Higgs bosons and the nonresonant ZZcontinuum originating from q (q) over bar, gg, and qg initial states. A total of 476 signal candidate events are observed with a background expectation of 26.2 +/- 3.6 events, enabling the measurement of the integrated cross section and the differential cross section as a function of the invariant mass and transverse momentum of the four-lepton system. In the mass range above 180GeV, assuming the theoretical constraint on the q (q) over bar production cross section calculated with perturbative NNLO QCD and NLO electroweak corrections, the signal strength of the gluon-fusion component relative to its leading-order prediction is determined to be mu(gg) = 2.4 +/- 1.0(stat.) +/- 0.5(syst.) +/- 0.8(theory). (C) 2015 CERN for the benefit of the ATLAS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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