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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, Brazilian Funding Agency (CNPq), Brazilian Funding Agency (CAPES), Brazilian Funding Agency (FAPERJ), Brazilian Funding Agency (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 lEnergie 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 Innovation Office, Hungary, Department of Atomic Energy and the 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, Ministry of Education, and 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, 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, 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, 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 Research Council and 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 Czech Republic, Council of Science and Industrial Research, India, Compagnia di San Paolo (Torino), HOMING PLUS program of Foundation for Polish Science, EU, Regional Development Fund, EU-ESF, Greek NSRF, Croatian Science Foundation, National Science Centre, Poland

Authors

Publications

Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV

Chatrchyan, S.; Adžić, Petar; Đorđević, Miloš; Ekmedzic, M.; Milošević, Jovan; Milenović, Predrag; Rekovic, V.

(2014)

TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Ekmedzic, M.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Rekovic, V.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/578
AB  - A search for physics beyond the standard model in events with at least three leptons is presented. The data sample, corresponding to an integrated luminosity of 19.5 fb(-1) of proton-proton collisions with center-of-mass energy root s = 8 TeV, was collected by the CMS experiment at the LHC during 2012. The data are divided into exclusive categories based on the number of leptons and their flavor, the presence or absence of an opposite-sign, same-flavor lepton pair (OSSF), the invariant mass of the OSSF pair, the presence or absence of a tagged bottom-quark jet, the number of identified hadronically decaying tau leptons, and the magnitude of the missing transverse energy and of the scalar sum of jet transverse momenta. The numbers of observed events are found to be consistent with the expected numbers from standard model processes, and limits are placed on new-physics scenarios that yield multilepton final states. In particular, scenarios that predict Higgs boson production in the context of supersymmetric decay chains are examined. We also place a 95% confidence level upper limit of 1.3% on the branching fraction for the decay of a top quark to a charm quark and a Higgs boson (t - GT cH), which translates to a bound on the left-and right-handed top-charm flavor-violating Higgs Yukawa couplings, lambda(H)(tc) and lambda(H)(ct), respectively, of root vertical bar lambda(H)(tc)vertical bar(2)+ vertical bar lambda(H)(tc)vertical bar(2) LT 0.21.
T2  - Physical Review D
T1  - Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV
VL  - 90
IS  - 3
DO  - 10.1103/PhysRevD.90.032006
ER  - 
@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Ekmedzic, M. and Milošević, Jovan and Milenović, Predrag and Rekovic, V.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/578",
abstract = "A search for physics beyond the standard model in events with at least three leptons is presented. The data sample, corresponding to an integrated luminosity of 19.5 fb(-1) of proton-proton collisions with center-of-mass energy root s = 8 TeV, was collected by the CMS experiment at the LHC during 2012. The data are divided into exclusive categories based on the number of leptons and their flavor, the presence or absence of an opposite-sign, same-flavor lepton pair (OSSF), the invariant mass of the OSSF pair, the presence or absence of a tagged bottom-quark jet, the number of identified hadronically decaying tau leptons, and the magnitude of the missing transverse energy and of the scalar sum of jet transverse momenta. The numbers of observed events are found to be consistent with the expected numbers from standard model processes, and limits are placed on new-physics scenarios that yield multilepton final states. In particular, scenarios that predict Higgs boson production in the context of supersymmetric decay chains are examined. We also place a 95% confidence level upper limit of 1.3% on the branching fraction for the decay of a top quark to a charm quark and a Higgs boson (t - GT cH), which translates to a bound on the left-and right-handed top-charm flavor-violating Higgs Yukawa couplings, lambda(H)(tc) and lambda(H)(ct), respectively, of root vertical bar lambda(H)(tc)vertical bar(2)+ vertical bar lambda(H)(tc)vertical bar(2) LT 0.21.",
journal = "Physical Review D",
title = "Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV",
volume = "90",
number = "3",
doi = "10.1103/PhysRevD.90.032006"
}
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedzic, M., Milošević, J., Milenović, P.,& Rekovic, V. (2014). Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV.
Physical Review D, 90(3).
https://doi.org/10.1103/PhysRevD.90.032006
Chatrchyan S, Adžić P, Đorđević M, Ekmedzic M, Milošević J, Milenović P, Rekovic V. Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV. Physical Review D. 2014;90(3)
Chatrchyan S., Adžić Petar, Đorđević Miloš, Ekmedzic M., Milošević Jovan, Milenović Predrag, Rekovic V., "Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV" Physical Review D, 90, no. 3 (2014),
https://doi.org/10.1103/PhysRevD.90.032006 .
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