Measurement of the top quark mass in the tt¯→dilepton channel from √s=8 TeV ATLAS data

The ATLAS collaboration

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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.

Original languageEnglish
Pages (from-to)350-371
Number of pages22
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - 10 Oct 2016


FundersFunder number
Not addedST/N000420/1
Cantons of Bern and Geneva
Czech Republic
Generalitat de Catalunya , Generalitat Valenciana
MES of Russia
Région Auvergne
Wallenberg Foundation
National Science Foundation1119200, 1410972
U.S. Department of Energy
Semiconductor Research Corporation
Biomedical Research Foundation of Northwest Louisiana
Barth Syndrome Foundation
Human Growth Foundation
Alexander von Humboldt-Stiftung
American Roentgen Ray Society
Society of Abdominal Radiology
California Department of Fish and Wildlife
Scientific Education and Research Institute
Appalachian Regional Commission
CRC Health Group
Ministry of Science and Technology
Departamento Administrativo de Ciencia, Tecnología e Innovación
Cummings Foundation
Ontario Innovation Trust
National Research Council Sri Lanka
Center for African Studies
Türkiye Atom Enerjisi Kurumu
H2020 European Research Council
H2020 Marie Skłodowska-Curie Actions
Biomedical Research Foundation
Seventh Framework Programme246806
Arizona-Nevada Academy of Science
Compute Canada
Glycemic Index Foundation
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Council for the Arts
Canada Foundation for Innovation
Science and Technology Facilities CouncilST/J005533/1, ST/M000753/1, ST/N000307/1, ST/N000331/1, ST/L003449/1, GRIDPP, ST/L006162/1, ST/J004804/1, PP/E000444/1, ST/N000463/1, ST/K001329/1, ST/N000277/1, ST/L000997/1
Leverhulme Trust
Royal Society
European Research Council
Australian Research Council
National Stroke Foundation
Neurosurgical Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Singapore Eye Research Institute
Minerva Foundation
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung163402, 156083
Stichting voor Fundamenteel Onderzoek der Materie
Danmarks Grundforskningsfond
German-Israeli Foundation for Scientific Research and Development
United States-Israel Binational Science Foundation
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Generalitat de Catalunya
Comisión Nacional de Investigación Científica y Tecnológica
Research Grants Council, University Grants Committee
Agencia Nacional de Promoción Científica y Tecnológica
Fonds Québécois de la Recherche sur la Nature et les Technologies
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Economía y Competitividad
Generalitat Valenciana
Foundation for Fundamental Research on Matter
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Joint Institute for Nuclear Research
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Knut och Alice Wallenbergs Stiftelse
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Nauki i Szkolnictwa Wyższego
Ministerstvo Průmyslu a Obchodu
Ministry of Science and Technology, Taiwan
Georgian National Science Foundation
Seventh Framework Programme
Israeli Centers for Research Excellence
Ministry of Education and Science
Centre National pour la Recherche Scientifique et Technique
Bundesministerium für Bildung und Frauen
Horizon 2020
British Columbia Knowledge Development Fund
Consejo Nacional de Innovación, Ciencia y Tecnología
Fundació Catalana de Trasplantament
Council on grants of the President of the Russian Federation
Fondation Partager le Savoir
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică


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