期刊
PHYSICS LETTERS B
卷 784, 期 -, 页码 173-191出版社
ELSEVIER
DOI: 10.1016/j.physletb.2018.07.035
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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
- IN2P3-CNRS, France
- CEA-DRF/IRFU, France
- SRNSFG, 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
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia, Russian Federation
- 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
- 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, European Union
- ERC, European Union
- ERDF, European Union
- FP7, European Union
- Horizon 2020, European Union
- 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
- CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- Canton of Geneva, Switzerland
- Division Of Physics [1624739] Funding Source: National Science Foundation
- STFC [ST/K001329/1, ST/M000753/1, ST/J004804/1, ST/N000447/1, ST/P002439/1, ST/N000420/1, ST/L006162/1, 1813540, ST/H001158/2, ST/N000277/1, ST/J005533/1, ST/L003449/1, ST/N000307/1] Funding Source: UKRI
The observation of Higgs boson production in association with a top quark pair (t (t) over barH), based on the analysis of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb(-1), and considering Higgs boson decays into b (b) over bar, WW*, tau(+)tau(-), gamma gamma, and ZZ*, the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the t (t) over barH searches using a dataset corresponding to integrated luminosities of 4.5 fb(-1) at 7 TeV and 20.3 fb(-1) at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total t (t) over barH production cross section at 13 TeV is measured to be 670 +/- 90(stat.)(-100)(+110)(syst.) fb, in agreement with the Standard Model prediction. (c) 2018 The Author(s). Published by Elsevier B.V.
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