Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at root s=8 TeV
CMS Collaboration (ukupan broj autora: 2263)
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Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb(-1). The W bosons are identified through their decay mode W - GT mu nu. The cross sections are reported as functions of jet multiplicity, transverse momenta, and the scalar sum of jet transverse momenta ( H-T) for different jet multiplicities. Distributions of the angular correlations between the jets and the muon are examined, as well as the average number of jets as a function of H-T and as a function of angular variables. The measured differential cross sections are compared with tree-level and higher-order recent event generators, as well as next-to-leading-order and next-to-nextto-leading-order theoretical predictions. The agreement of the generators with the measurements builds confidence in their use for the simulation of W+ ...jets background processes in searches for new physics at the LHC.
Source:Physical Review D, 2017, 95, 5
- Austrian Federal Ministry of Science, Research and Economy, Austrian Science Fund, Belgian Fonds de la Recherche Scientique, and Fonds voor Wetenschappelijk Onderzoek, Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and 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, Croatian Science Foundation, Research Promotion Foundation, Cyprus, Secretariat for Higher Education, Science, Technology and Innovation, Ecuador, Ministry of Education and Research, Estonian Research Council [IUT23-4, IUT23-6], European Regional Development Fund, Estonia, Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics, Institut National de Physique Nucleaire et de Physique des Particules/CNRS, Commissariat al Energie Atomique et aux Energies Alternatives / CEA, France, Bundes-ministerium fur Bildung und Forschung, Deutsche Forschungsgemeinschaft, HelmholtzGemeinschaft Deutscher Forschungszentren, Germany, General Secretariat for Research and Technology, Greece, National Scientic Research Foundation, and National Innovation Ofce, 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, Ministry of Science, ICT and Future Planning, National Research Foundation (NRF), Republic of Korea, Lithuanian Academy of Sciences, Ministry of Education, and University of Malaya (Malaysia), Mexican Funding Agencies (BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI), Ministry of Business, Innovation and Employment, New Zealand, Pakistan Atomic Energy Commission, the Ministry of Science and Higher Education and the National Science Centre, Poland, Fundaao 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 Cnsolider-Ingenio 2010, Spain, Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER), Ministry of Science and Technology, Taipei, thailand Center of Excellence in Physics, Institute for the Promotion of Teaching Science and Technology of Thailand, Activating Research and the National Science and Technology Development Agency of Thailand, Scientic and Technical Research Council of Turkey, Turkish Atomic Energy Authority, National Academy of Sciences of Ukraine, and State Fund for Fundamental Researches, Ukraine, Science and Technology Facilities Council, UK, US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (European Union), Leventis Foundation, the 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 program of the Foundation for Polish Science,conanced from European Union, Regional Development Fund, Mobility Plus program of the Ministry of Science and Higher Education, the 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], Sonata-bis [2012/07/E/ST2/01406], 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, Chulalongkorn University, Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845]