Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP10(2013)167
Keywords
Hadron-Hadron Scattering; Top physics
Categories
Funding
- Austrian Federal Ministry of Science and Research
- Austrian Science Fund
- Belgian Fonds de la Recherche Scientifique
- Fonds voor Wetenschappelijk Onderzoek
- CNPq
- CAPES
- FAPERJ
- FAPESP
- Bulgarian Ministry of Education and Science
- CERN
- Chinese Academy of Sciences
- Ministry of Science and Technology
- National Natural Science Foundation of China
- Colombian Funding Agency (COLCIENCIAS)
- Croatian Ministry of Science, Education and Sport
- Research Promotion Foundation, Cyprus
- Ministry of Education and Research [SF0690030s09]
- 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
- Commissariat a l'Energie Atomique et aux Energies Alternatives / CEA, France
- Bundesministerium fur Bildung und Forschung
- Deutsche Forschungsgemeinschaft
- Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
- General Secretariat for Research and Technology, Greece
- National Scientific Research Foundation
- National Office for Research and Technology, Hungary
- Department of Atomic Energy
- Department of Science and Technology, India
- Institute for Studies in Theoretical Physics and Mathematics, Iran
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare, Italy
- Korean Ministry of Education, Science and Technology
- World Class University program of NRF, Republic of Korea
- Lithuanian Academy of Sciences
- CINVESTAV
- CONACYT
- SEP
- UASLP-FAI
- Ministry of Science and Innovation, New Zealand
- Pakistan Atomic Energy Commission
- Ministry of Science and Higher Education
- National Science Centre, 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 and Programa Consolider-Ingenio, Spain
- ETH Board
- ETH Zurich
- PSI
- SNF
- UniZH
- Canton Zurich
- SER
- National Science Council, 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
- Science and Technology Facilities Council, U.K.
- US Department of Energy
- US National Science Foundation
- Marie-Curie programme
- European Research Council
- 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 Czech Republic
- Council of Science and Industrial Research, India
- Compagnia di San Paolo (Torino)
- HOMING PLUS programme of Foundation for Polish Science
- EU, Regional Development Fund
- Thalis programme
- Aristeia programme
- EU-ESF
- Greek NSRF
- STFC [ST/J005665/1, ST/I505580/1, ST/I005912/1, ST/H000925/1, ST/K001639/1, ST/L00609X/1, ST/K003844/1, ST/H00081X/2, ST/F007094/1, ST/J004901/1, ST/I505572/1, ST/F007434/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K001604/1 CMS Upgrade, ST/K001256/1, ST/K003542/1 GRID PP, ST/K001604/1 SuperNEMO, ST/J005665/1, ST/K001604/1 LHCb, ST/L00609X/1, ST/I505572/1, ST/J004901/1, ST/K003844/1, ST/K001604/1 T2K, ST/K001604/1, ST/F007094/1, ST/I003622/1 GRIDPP, ST/I005912/1, GRIDPP, ST/K003844/1 GRIDPP, ST/H000925/1, ST/K001604/1 MICE/UKNF, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/L00609X/1 GRIDPP, ST/K001604/1 DMUK, ST/F007434/1, CMS, ST/K001639/1, ST/I505580/1, ST/I005912/1 GRIDPP] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1205960, 0906479, 1314131] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1306951, 0969555, 1151640, 1211067] Funding Source: National Science Foundation
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The W-boson helicity fractions in top-quark decays are measured with t (t) over bar events in the lepton+jets final state, using proton-proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 5.0 fb(-1). The measured fractions of longitudinal, left-, and right-handed helicity are F-0 = 0.682 +/- 0.030 (stat.) +/- 0.033 (syst.), F-L = 0.310 +/- 0.022 (stat.) +/- 0.022 (syst.), and F-R = 0.008 +/- 0.012 (stat.) +/- 0.014 (syst.), consistent with the standard model predictions. The measured fractions are used to probe the existence of anomalous Wtb couplings. Exclusion limits on the real components of the anomalous couplings g(L), g(R) are also derived.
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