Abstract
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Austrian Federal Ministry of Science, Research and Economy
Austrian Science Fund
Belgian Fonds de la Recherche Scientifique
Fonds voor Wetenschappelijk Onderzoek
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Bulgarian Ministry of Education and Science
CERN
Chinese Academy of Sciences
National Natural Science Foundation of China
Colombian Funding Agency (COLCIENCIAS)
Croatian Ministry of Science, Education and Sport
Croatian Science Foundation
Research Promotion Foundation, Cyprus
Ministry of Education and Research, Estonia
Estonian Research Council, Estonia
European Regional Development Fund, Estonia
Academy of Finland
Finnish Ministry of Education and Culture
Helsinki Institute of Physics
Institut National de Physique Nucleaire et de Physique des Particules / CNRS, France
Commissariat a l'Energie Atomique et aux Energies Alternatives / CEA, France
Bundesministerium fur Bildung und Forschung, Germany
Deutsche Forschungsgemeinschaft, Germany
Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
General Secretariat for Research and Technology, Greece
National Scientific Research Foundation, Hungary
National Innovation Office, Hungary
Department of Atomic Energy, India
Department of Science and Technology, India
Institute for Studies in Theoretical Physics and Mathematics, Iran
Science Foundation, Ireland
Istituto Nazionale di Fisica Nucleare, Italy
Ministry of Science, ICT and Future Planning, Republic of Korea
National Research Foundation (NRF), Republic of Korea
Lithuanian Academy of Sciences
Ministry of Education (Malaysia)
University of Malaya (Malaysia)
Mexican Funding Agency (CINVESTAV)
Mexican Funding Agency (CONACYT)
Mexican Funding Agency (SEP)
Mexican Funding Agency (UASLP-FAI)
Ministry of Business, Innovation and Employment, New Zealand
Pakistan Atomic Energy Commission
Ministry of Science and Higher Education, Poland
National Science Center, Poland
Fundacao para a Ciencia e a Tecnologia, Portugal
JINR, Dubna
Ministry of Education and Science of the Russian Federation
Federal Agency of Atomic Energy of the Russian Federation
Russian Academy of Sciences
Russian Foundation for Basic Research
Ministry of Education, Science and Technological Development of Serbia
Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Spain
Swiss Funding Agency (ETH Board)
Swiss Funding Agency (ETH Zurich)
Swiss Funding Agency (PSI)
Swiss Funding Agency (SNF)
Swiss Funding Agency (UniZH)
Swiss Funding Agency (Canton Zurich)
Swiss Funding Agency (SER)
Ministry of Science and Technology, Taipei
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology of Thailand
Special Task Force for Activating Research
National Science and Technology Development Agency of Thailand
Scientific and Technical Research Council of Turkey
Turkish Atomic Energy Authority
National Academy of Sciences of Ukraine, Ukraine
State Fund for Fundamental Researches, Ukraine
Science and Technology Facilities Council, UK
U.S. Department of Energy
U.S. National Science Foundation
Marie-Curie program (European Union)
European Research Council (European Union)
EPLANET (European Union)
Leventis Foundation
A. P. Sloan Foundation
Alexander von Humboldt Foundation
Belgian Federal Science Policy Office
Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
Council of Science and Industrial Research, India
HOMING PLUS program of the Foundation for Polish Science
European Union, Regional Development Fund
OPUS program of the National Science Center (Poland)
Compagnia di San Paolo (Torino)
MIUR Project (Italy)
Thalis program - EU-ESF
Aristeia program - EU-ESF
Greek NSRF
National Priorities Research Program by Qatar National Research Fund
Rachadapisek Sompot Fund, Chulalongkorn University (Thailand)
Welch Foundation
Ministry of Science and Technology
Programa Consolider-Ingenio, Spain
Science and Technology Facilities Council
A novel technique for measuring the mass of the top quark that uses only the kinematic properties of its charged decay products is presented. Top quark pair events with final states with one or two charged leptons and hadronic jets are selected from the data set of 8 TeV proton-proton collisions, corresponding to an integrated luminosity of 19.7 fb(-1). By reconstructing secondary vertices inside the selected jets and computing the invariant mass of the system formed by the secondary vertex and an isolated lepton, an observable is constructed that is sensitive to the top quark mass that is expected to be robust against the energy scale of hadronic jets. The main theoretical systematic uncertainties, concerning the modeling of the fragmentation and hadronization of b quarks and the reconstruction of secondary vertices from the decays of b hadrons, are studied. A top quark mass of 173.68 +/- 0.20(stat)(-0.97)(+1.58) (syst) GeV is measured. The overall systematic uncertainty is dominated by the uncertainty in the b quark fragmentation and the modeling of kinematic properties of the top quark.
Yerevan Phys Inst, Yerevan 375036, Armenia
Austrian Acad Sci, Inst Hochenergiephys, OeAW, A-1050 Vienna, Austria
Natl Ctr Particle & High Energy Phys, Minsk, Byelarus
Univ Antwerp, B-2020 Antwerp, Belgium
Vrije Univ Brussel, Brussels, Belgium
Univ Libre Bruxelles, Brussels, Belgium
Univ Ghent, B-9000 Ghent, Belgium
Catholic Univ Louvain, Louvain, Belgium
Univ Mons, B-7000 Mons, Belgium
Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil
Univ Estadual Paulista, Sao Paulo, Brazil
Univ Fed ABC, Sao Paulo, Brazil
Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
Univ Sofia, BU-1126 Sofia, Bulgaria
Beihang Univ, Beijing 100191, Peoples R China
Inst High Energy Phys, Beijing 100039, Peoples R China
Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
Univ Los Andes, Bogota, Colombia
Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
Univ Split, Fac Sci, Split, Croatia
Rudjer Boskovic Inst, Zagreb, Croatia
Univ Cyprus, CY-1678 Nicosia, Cyprus
Charles Univ Prague, Prague, Czech Republic
Univ San Francisco de Quito, Quito, Ecuador
Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt
NICPB, Tallinn, Estonia
Univ Helsinki, Dept Phys, Helsinki, Finland
Helsinki Inst Phys, Helsinki, Finland
Lappeenranta Univ Technol, Lappeenranta, Finland
CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS, Inst Pluridisciplinaire Hubert Curien,IN2P3, Strasbourg, France
Inst Natl Phys Nucl & Phys Particules, Ctr Calcul, CNRS, IN2P3, Villeurbanne, France
Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France
Georgian Tech Univ, Tbilisi, Rep of Georgia
Tbilisi State Univ, GE-380086 Tbilisi, Rep of Georgia
Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany
Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany
Rhein Westfal TH Aachen, Phys Inst 3 B, Aachen, Germany
DESY, Hamburg, Germany
Univ Hamburg, Hamburg, Germany
Univ Karlsruhe, Inst Expt Kernphys, Karlsruhe, Germany
NCSR Demokritos, INPP, Aghia Paraskevi, Greece
Univ Athens, Athens 11528, Greece
Univ Ioannina, GR-45110 Ioannina, Greece
MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Athens, Greece
Wigner Res Ctr Phys, Budapest, Hungary
Inst Nucl Res ATOMKI, Debrecen, Hungary
Univ Debrecen, Debrecen, Hungary
Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India
Panjab Univ, Chandigarh 160014, India
Univ Delhi, Delhi 110007, India
Saha Inst Nucl Phys, Kolkata, India
Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India
Tata Inst Fundamental Res, Homi Bhabha Rd, Mumbai 400005, Maharashtra, India
IISER, Pune, Maharashtra, India
Inst Res Fundamental Sci IPM, Tehran, Iran
Univ Coll Dublin, Dublin 2, Ireland
Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
Univ Bari, Bari, Italy
Politecn Bari, Bari, Italy
Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy
Univ Bologna, Bologna, Italy
Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy
Univ Catania, Catania, Italy
Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy
Univ Florence, Florence, Italy
Ist Nazl Fis Nucl, Lab Nazl Frascati, POB 13, I-00044 Frascati, Italy
Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy
Univ Genoa, Genoa, Italy
Ist Nazl Fis Nucl, Sez Milano Bicocca, Via Celoria 16, I-20133 Milan, Italy
Univ Milano Bicocca, Milan, Italy
Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy
Univ Naples Federico II, Naples, Italy
Univ Basilicata, I-85100 Potenza, Italy
Univ G Marconi, Rome, Italy
Univ G Marconi, Potenza, Italy
Ist Nazl Fis Nucl, Sez Padova, Padua, Italy
Univ Padua, Padua, Italy
Univ Trent, Trento, Italy
Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
Univ Pavia, Via Palestro 3, I-27100 Pavia, Italy
Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy
Univ Perugia, I-06100 Perugia, Italy
Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy
Univ Pisa, Pisa, Italy
Scuola Normale Super Pisa, Pisa, Italy
Ist Nazl Fis Nucl, Sez Roma, Rome, Italy
Univ Roma, Rome, Italy
Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
Univ Turin, Turin, Italy
Univ Piemonte Orientale, Novara, Italy
Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy
Univ Trieste, Trieste, Italy
Kangwon Natl Univ, Chunchon, South Korea
Kyungpook Natl Univ, Daegu, South Korea
Chonbuk Natl Univ, Jeonju 561756, South Korea
Chon