Article
Measurement of the top quark mass in the tt¯→dilepton channel from s=8 TeV ATLAS data
Physics Letters B, Elsevier, ISSN 1873-2445
Volume 761, 2016
DOI:10.1016/j.physletb.2016.08.042, Dimensions: pub.1017674254,
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- (2) Center for Particle Physics of Marseilles, grid.470046.1
- (3) University of Oklahoma, grid.266900.b
- (4) University of Iowa, grid.214572.7
- (5) Institute of Physics, grid.435347.2
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- (7) National Institute for Subatomic Physics, grid.420012.5
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- (9) University of Sussex, grid.12082.39
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Description
The top quark mass is measured in the tt¯→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of s=8 TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be mtop=172.99±0.41 (stat)±0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from s=7 TeV data in the tt¯→dilepton and tt¯→lepton+jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.
Funders
- Ministry of Science and Technology of the People's Republic of China
- United States-Israel Binational Science Foundation
- Chinese Academy of Sciences
- Japan Society for the Promotion of Science
- National Research Council Canada
- Slovenian Research Agency
- Science and Technology Facilities Council
- Colciencias
- German Research Foundation
- Leverhulme Trust
- Agencia Nacional de Promoción Científica y Tecnológica
- French National Centre for Scientific Research
- European Research Council
- São Paulo Research Foundation
- Ministry of Economy, Industry and Competitiveness
- Federal Ministry of Education and Research
- Brain Research Foundation
- Fonds de Recherche du Québec – Nature et Technologies
- Human Growth Foundation
- European Commission
- Knut and Alice Wallenberg Foundation
- Dutch Research Council
- Israeli Centers for Research Excellence
- FWF Austrian Science Fund
- Ministry of Education, Science and Sport
- Israel Science Foundation
- Ministry of Education, Culture, Sports, Science and Technology
- National Natural Science Foundation of China
- Ministry of Education Youth and Sports
- National Institute for Nuclear Physics
- Joint Institute for Nuclear Research
- Semiconductor Research Corporation
- Agence Nationale de la Recherche
- Ministry of Science and Higher Education
- Comisión Nacional de Investigación Científica y Tecnológica
- Atomic Energy and Alternative Energies Commission
- National Science Center
- Government of Catalonia
- Generalitat Valenciana
- Natural Sciences and Engineering Research Council
- Foundation for Science and Technology
- Alexander von Humboldt Foundation
- Swiss National Science Foundation
- Turkish Atomic Energy Authority
- General Secretariat for Research and Technology
- Ministry of Science and Technology
- Federal Ministry of Science, Research and Economics
- United States Department of Energy
- Royal Society
- National Council for Scientific and Technological Development
- Canada Foundation for Innovation
- Canada Council for the Arts
- Canadian Armed Forces
- Danish National Research Foundation
- Canarie
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