期刊
EUROPEAN PHYSICAL JOURNAL C
卷 78, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-018-6373-0
关键词
CMS; Physics; Standard model; Cross section; Z boson; Jets; Proton; LHC
资金
- Austrian Federal Ministry of Science, Research and Economy
- Austrian Science Fund
- Belgian Fonds de la Recherche Scientifique
- Fonds voor Wetenschappelijk Onder-zoek
- CAPES
- FAPERJ
- FAPESP
- Bulgarian Ministry of Education and Science
- 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
- 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
- Helsinki Institute of Physics
- Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France
- Bundesministerium fur Bildung und Forschung, Deutsche Forschungsgemeinschaft
- Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
- National Research, Development and Innovation Fund, Hungary
- Department of Atomic Energy
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare, Italy
- National Research Foundation (NRF), Republic of Korea
- CONACYT
- UASLP-FAI
- Pakistan Atomic Energy Commission
- National Science Centre, Poland
- JINR, Dubna
- Federal Agency of Atomic Energy of the Russian Federation
- Russian Competitiveness Program of NRNU MEPhI
- Ministry of Education, Science and Technological Development of Serbia
- SNF
- UniZH, Canton Zurich
- SER
- Turkish Atomic Energy Authority
- State Fund for Fundamental Researches, Ukraine
- US Department of Energy
- US National Science Foundation
- Marie-Curie programme
- European Research Council
- Horizon 2020 Grant [675440]
- 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)
- FWO (Belgium) under the Excellence of Science -EOS [30820817]
- Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences [123842, 123959, 124845, 124850, 125105]
- Council of Scientific and Industrial Research, India
- HOMING PLUS programme of the Foundation for Polish Science
- European Union, Regional Development Fund [Harmonia 2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861]
- Sonata-bis [2012/07/E/ST2/01406]
- National Priorities Research Program by Qatar National Research Fund
- Programa de Excelencia Maria de Maeztu and the Programa Severo Ochoa del Principado de Asturias
- Thalis
- EU-ESF
- Greek NSRF
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University
- Welch Foundation [C-1845]
- Weston Havens Foundation (USA)
- Science and Technology Facilities Council [ST/M004775/1, ST/K003542/1 GRID PP, ST/K003542/1, ST/J004871/1, ST/N001273/1, ST/I505580/1, ST/I003622/1, ST/L005603/1, ST/F007434/1, ST/J005479/1] Funding Source: researchfish
The production of a Z boson, decaying to two charged leptons, in association with jets in proton- proton collisions at a centre- of- mass energy of 13 TeV is measured. Data recorded with the CMS detector at the LHC are used that correspond to an integrated luminosity of 2.19 fb - 1. The cross section is measured as a function of the jet multiplicity and its dependence on the transverse momentum of the Z boson, the jet kinematic variables ( transverse momentum and rapidity), the scalar sum of the jet momenta, which quantifies the hadronic activity, and the balance in transverse momentum between the reconstructed jet recoil and the Z boson. The measurements are compared with predictions from four different calculations. The first two merge matrix elements with different parton multiplicities in the final state and parton showering, one of which includes oneloop corrections. The third is a fixed- order calculation with next- to- next- to- leading order accuracy for the process with a Z boson and one parton in the final state. The fourth combines the fully differential next- to- next- to- leading order calculation of the process with no parton in the final state with next- to- next- to- leading logarithm resummation and parton showering.
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