Austrian Federal Ministry of Science, Research and Economy, Austrian Science Fund, Belgian Fonds de la Recherche Scientifique, Brazilian Funding Agency CNPq, Brazilian Funding Agency CAPES, Brazilian Funding Agency FAPERJ, Brazilian Funding Agency FAPESP, Fonds voor Wetenschappelijk Onderzoek, 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, Croatian Science Foundation, Research Promotion Foundation, Cyprus, Secretariat for Higher Education, Science, Technology and Innovation, Ecuador, Ministry of Education and Research, Estonian Research Council, Estonia [IUT23-4, IUT23-6], European Regional Development Fund, Estonia, Academy of Finland, Finnish Ministry of Education and Culture, Institut National de Physique Nucleaire et de Physique des Particules / CNRS, 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, 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), BUAP, CINVESTAV, CONACYT, LNS, SEP, UASLP-FAI, Ministry of Business, Innovation and Employment, New Zealand, Pakistan Atomic Energy Commission, Ministry of Science and Higher Education, Poland, 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, Spain, Programa Consolider-Ingenio, Spain, ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, 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, U.K., US Department of Energy, US National Science Foundation, Marie-Curie programme (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 lIndustrie et dans lAgriculture (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 programme of the Foundation for Polish Science, European Union, Regional Development Fund, Mobility Plus programme of the Ministry of Science and Higher Education, National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2013/11/B/ST2/04202, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998], Thalis programme - EU-ESF, Greek NSRF, National Priorities Research Program by Qatar National Research Fund, Programa Clarin-COFUND del Principado de Asturias, Rachadapisek Sompot Fund for Postdoctoral Fellowship (Thailand), Chulalongkorn University (Thailand), Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845], Department of Science and Technology, India, University of Malaya (Malaysia), Sonata-bis [2012/07/E/ST2/01406], Aristeia programme - EU-ESF, Helsinki Institute of Physics, Commissariat a lEnergie Atomique et aux Energies Alternatives / CEA, France

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Austrian Federal Ministry of Science, Research and Economy, Austrian Science Fund, Belgian Fonds de la Recherche Scientifique, Brazilian Funding Agency CNPq, Brazilian Funding Agency CAPES, Brazilian Funding Agency FAPERJ, Brazilian Funding Agency FAPESP, Fonds voor Wetenschappelijk Onderzoek, 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, Croatian Science Foundation, Research Promotion Foundation, Cyprus, Secretariat for Higher Education, Science, Technology and Innovation, Ecuador, Ministry of Education and Research, Estonian Research Council, Estonia [IUT23-4, IUT23-6], European Regional Development Fund, Estonia, Academy of Finland, Finnish Ministry of Education and Culture, Institut National de Physique Nucleaire et de Physique des Particules / CNRS, 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, 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), BUAP, CINVESTAV, CONACYT, LNS, SEP, UASLP-FAI, Ministry of Business, Innovation and Employment, New Zealand, Pakistan Atomic Energy Commission, Ministry of Science and Higher Education, Poland, 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, Spain, Programa Consolider-Ingenio, Spain, ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, 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, U.K., US Department of Energy, US National Science Foundation, Marie-Curie programme (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 lIndustrie et dans lAgriculture (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 programme of the Foundation for Polish Science, European Union, Regional Development Fund, Mobility Plus programme of the Ministry of Science and Higher Education, National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2013/11/B/ST2/04202, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998], Thalis programme - EU-ESF, Greek NSRF, National Priorities Research Program by Qatar National Research Fund, Programa Clarin-COFUND del Principado de Asturias, Rachadapisek Sompot Fund for Postdoctoral Fellowship (Thailand), Chulalongkorn University (Thailand), Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845], Department of Science and Technology, India, University of Malaya (Malaysia), Sonata-bis [2012/07/E/ST2/01406], Aristeia programme - EU-ESF, Helsinki Institute of Physics, Commissariat a lEnergie Atomique et aux Energies Alternatives / CEA, France

Authors

Publications

Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV

Khachatryan, V.; Adžić, Petar; Ćirković, Predrag; Devetak, Damir; Milošević, Jovan; Reković, Vladimir; Đorđević, Miloš; Milenović, Predrag

(2017) 

TY  - JOUR
AU  - Khachatryan, V.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Devetak, Damir
AU  - Milošević, Jovan
AU  - Reković, Vladimir
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1435
AB  - Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at the LHC in proton-proton collisions at and 8 TeV correspond to integrated luminosities of 5.0 and 19.7 fb(-1), respectively. The analysis is performed using events with one muon and two or three jets. A Bayesian neural network technique is used to discriminate between the signal and backgrounds, which are observed to be consistent with the standard model prediction. The 95% confidence level (CL) exclusion limits on anomalous right-handed vector, and left- and right-handed tensor Wtb couplings are measured to be vertical bar f (V) (R) vertical bar LT 0.16,aEuro,vertical bar f (T) (L) vertical bar LT 0.057, and - 0.049 LT f (T) (R) LT 0.048, respectively. For the FCNC couplings kappa (tug) and kappa (tcg), the 95% CL upper limits on coupling strengths are vertical bar kappa (tug)vertical bar/I GT LT 4.1 x 10(- 3) TeV-1 and vertical bar kappa (tcg)vertical bar/Lambda LT 1.8 x 10(- 2) TeV-1, where I GT is the scale for new physics, and correspond to upper limits on the branching fractions of 2.0 x 10(-5) and 4.1 x 10(-4) for the decays t - GT ug and t - GT cg, respectively.
T2  - Journal of High Energy Physics
T1  - Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV
IS  - 2
DO  - 10.1007/JHEP02(2017)028
ER  - 
@article{
author = "Khachatryan, V. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Milošević, Jovan and Reković, Vladimir and Đorđević, Miloš and Milenović, Predrag",
year = "2017",
abstract = "Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at the LHC in proton-proton collisions at and 8 TeV correspond to integrated luminosities of 5.0 and 19.7 fb(-1), respectively. The analysis is performed using events with one muon and two or three jets. A Bayesian neural network technique is used to discriminate between the signal and backgrounds, which are observed to be consistent with the standard model prediction. The 95% confidence level (CL) exclusion limits on anomalous right-handed vector, and left- and right-handed tensor Wtb couplings are measured to be vertical bar f (V) (R) vertical bar LT 0.16,aEuro,vertical bar f (T) (L) vertical bar LT 0.057, and - 0.049 LT f (T) (R) LT 0.048, respectively. For the FCNC couplings kappa (tug) and kappa (tcg), the 95% CL upper limits on coupling strengths are vertical bar kappa (tug)vertical bar/I GT LT 4.1 x 10(- 3) TeV-1 and vertical bar kappa (tcg)vertical bar/Lambda LT 1.8 x 10(- 2) TeV-1, where I GT is the scale for new physics, and correspond to upper limits on the branching fractions of 2.0 x 10(-5) and 4.1 x 10(-4) for the decays t - GT ug and t - GT cg, respectively.",
journal = "Journal of High Energy Physics",
title = "Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV",
number = "2",
doi = "10.1007/JHEP02(2017)028"
}
Khachatryan, V., Adžić, P., Ćirković, P., Devetak, D., Milošević, J., Reković, V., Đorđević, M.,& Milenović, P.. (2017). Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV. in Journal of High Energy Physics(2).
https://doi.org/10.1007/JHEP02(2017)028
Khachatryan V, Adžić P, Ćirković P, Devetak D, Milošević J, Reković V, Đorđević M, Milenović P. Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV. in Journal of High Energy Physics. 2017;(2).
doi:10.1007/JHEP02(2017)028 .
Khachatryan, V., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Milošević, Jovan, Reković, Vladimir, Đorđević, Miloš, Milenović, Predrag, "Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV" in Journal of High Energy Physics, no. 2 (2017),
https://doi.org/10.1007/JHEP02(2017)028 . .
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